If you’re building or upgrading a Plex server with 20TB of storage, choosing the right hard drive is critical. The best options balance performance, reliability, and cost, but tradeoffs exist. The Western Digital WD Red Pro NAS stands out for its balance of durability and speed, making it ideal for continuous media streaming. The Seagate IronWolf Pro offers enterprise-grade reliability, suited for heavy workloads, while the MDD MAXDIGITALDATA 20TB provides an affordable entry point for budget-conscious setups. Continue reading to see how these drives compare and find the best fit for your Plex server.
Complete the kit
Key Takeaways
- The top drives offer a balance of high capacity, reliability, and consistent performance suitable for 24/7 media streaming.
- Enterprise-grade drives like Seagate IronWolf Pro excel in durability but come at a premium price, often justifying their longevity for heavy use.
- Affordable options such as MDD MAXDIGITALDATA provide decent performance but may lack long-term reliability for continuous operation.
- Cache size and RPM are key factors influencing streaming smoothness; drives with larger caches and 7200 RPM tend to perform better.
- Choosing between NAS-optimized and enterprise drives depends on workload demands and budget constraints.
| MDD MAXDIGITALDATA 20TB 7200 RPM SATA 6.0Gb/s 3.5” Internal Hard Drive for NAS |  | Best for High-Capacity NAS Storage | Digital Storage Capacity: 20 TB | Hard Disk Interface: Serial ATA-600 | Connectivity Technology: SATA | VIEW ON AMAZON | See Our Full Breakdown |
| Western Digital 20TB WD Red Pro NAS Internal Hard Drive HDD – 7200 RPM, SATA 6 Gb/s, CMR, 512 MB Cache, 3.5″ |  | Best for 24/7 Multi-User NAS Environments | Capacity: 20TB | RPM: 7200 | Interface: SATA 6 Gb/s | VIEW ON AMAZON | See Our Full Breakdown |
| Western Digital 20TB WD Red Pro NAS Internal Hard Drive HDD – 7200 RPM, SATA 6 Gb/s, CMR, 512 MB Cache, 3.5″ |  | Best for Demanding Enterprise NAS | Capacity: 20TB | RPM: 7200 | Interface: SATA 6 Gb/s | VIEW ON AMAZON | See Our Full Breakdown |
| Seagate Exos X20 20TB 7200 RPM SATA 6Gb/s 3.5-inch Hard Drive (Renewed) |  | Best for Enterprise and Data Center Storage | Digital Storage Capacity: 20 TB | Hard Disk Interface: SATA 6Gb/s | Rotational Speed: 7200 rpm | VIEW ON AMAZON | See Our Full Breakdown |
| Toshiba N300 20TB NAS 3.5-Inch Internal Hard Drive |  | Best for Small Office and Home NAS | Capacity: 20TB | Form Factor: 3.5 inches | Interface: SATA 6 Gb/s | VIEW ON AMAZON | See Our Full Breakdown |
| Seagate IronWolf Pro 20TB Enterprise NAS Internal HDD |  | Best for Enterprise NAS Environments | Digital Storage Capacity: 20 TB | Hard Disk Interface: SATA 6 Gb/s | Connectivity Technology: SATA | VIEW ON AMAZON | See Our Full Breakdown |
| Seagate 20TB Exos Enterprise Hard Drive SATA |  | Best for Data Center and Hyperscale Deployments | Digital Storage Capacity: 20 TB | Hard Disk Interface: Serial ATA | Connectivity Technology: SATA | VIEW ON AMAZON | See Our Full Breakdown |
| Western Digital WD Ultrastar 20TB Internal Hard Drive WD200EDGZ |  | Best for Large-Scale Enterprise and Data Center Use | Digital Storage Capacity: 20 TB | Hard Disk Interface: Serial ATA-600 | Connectivity Technology: SATA | VIEW ON AMAZON | See Our Full Breakdown |
| Western Digital Ultrastar DC HC580 24TB 7.2K RPM SATA Enterprise Hard Drive (Renewed) |  | Best for High-Demand Enterprise Data Storage | Digital Storage Capacity: 24 TB | Hard Disk Interface: Serial ATA | Connectivity Technology: SATA | VIEW ON AMAZON | See Our Full Breakdown |
| hard drives for plex servers 20tb | Digital Storage Capacity | Hard Disk Interface | Rotational Speed | Connectivity Technology |
|---|---|---|---|---|
| MDD MAXDIGITALDATA 20TB 7200 R | 20 TB | Serial ATA-600 | 7200 rpm | SATA |
| Western Digital 20TB WD Red Pr | — | — | — | — |
| Western Digital 20TB WD Red Pr | — | — | — | — |
| Seagate Exos X20 20TB 7200 RPM | 20 TB | SATA 6Gb/s | 7200 rpm | — |
| Toshiba N300 20TB NAS 3.5-Inch | — | — | — | — |
| Seagate IronWolf Pro 20TB Ente | 20 TB | SATA 6 Gb/s | 7200 rpm | SATA |
| Seagate 20TB Exos Enterprise H | 20 TB | Serial ATA | 7200 rpm | SATA |
| Western Digital WD Ultrastar 2 | 20 TB | Serial ATA-600 | 7200 rpm | SATA |
| Western Digital Ultrastar DC H | 24 TB | Serial ATA | 7200 rpm | SATA |
More Details on Our Top Picks
MDD MAXDIGITALDATA 20TB 7200 RPM SATA 6.0Gb/s 3.5” Internal Hard Drive for NAS
This drive stands out for delivering high capacity with a focus on reliability, making it a solid choice for NAS setups where durability and noise reduction matter. Compared with the Western Digital WD Red Pro, it offers similar performance but emphasizes minimal noise, which benefits quiet environments. However, it’s a bare drive, requiring additional accessories, and is primarily designed for NAS, limiting its flexibility for desktop use. Its 7200 RPM speed and 200MB/s transfer rate ensure quick access for networked storage, but it may be overkill for casual users who don’t need such high reliability or capacity.
Pros:- High capacity suitable for extensive NAS storage
- Fast transfer speed of up to 200MB/s
- Low noise and vibration for quieter operation
- Designed for high reliability in NAS environments
Cons:- No included cables or screws, requiring additional components
- Primarily aimed at NAS, less suitable for standalone desktop use
Best for: Storage-focused users building or upgrading NAS systems that prioritize longevity and quiet operation
Not ideal for: Desktop users seeking a plug-and-play experience or casual data storage, since it requires formatting and doesn’t include cables
- Digital Storage Capacity:20 TB
- Hard Disk Interface:Serial ATA-600
- Connectivity Technology:SATA
- Form Factor:3.5 inches
- Rotational Speed:7200 rpm
- Read Speed:200 MB/s
- Media Speed:200 MB/s
- MTBF:1 million hours
Our verdict“This drive is ideal for NAS users needing reliable, high-capacity storage with quiet operation, but not for casual desktop users.”
Western Digital 20TB WD Red Pro NAS Internal Hard Drive HDD – 7200 RPM, SATA 6 Gb/s, CMR, 512 MB Cache, 3.5″
This model is equipped for demanding NAS setups, with a 7200 RPM speed, 512 MB cache, and a workload rate of 550TB/year, making it suitable for multi-user environments. Compared with the Seagate Exos X20, it’s more optimized for ongoing NAS operation, though it may be overkill for light or home use. Its compatibility with most NAS enclosures simplifies integration, but the price point isn’t specified, which could be a consideration. For users running multi-user NAS servers, this drive offers the endurance and performance needed for continuous operation without compromise.
Pros:- High capacity with reliable performance
- Designed for continuous, multi-user NAS operation
- Compatible with most NAS enclosures
- Fast 7200 RPM speed with ample cache
Cons:- Price not clearly specified, potentially expensive
- Overkill for single-user or casual NAS environments
Best for: IT professionals and businesses running multi-user NAS servers with high data demands
Not ideal for: Casual users or small home NAS setups where over-specification may lead to unnecessary costs
- Capacity:20TB
- RPM:7200
- Interface:SATA 6 Gb/s
- Cache:512 MB
- Form Factor:3.5″
- Workload Rate:550TB/year
Our verdict“This drive suits multi-user NAS systems that require high endurance and consistent performance, but could be too premium for light use.”
Western Digital 20TB WD Red Pro NAS Internal Hard Drive HDD – 7200 RPM, SATA 6 Gb/s, CMR, 512 MB Cache, 3.5″
Compared to the other WD Red Pro, this model emphasizes enterprise-grade reliability with a 2.5 million hours MTBF and a workload rate of 550TB/year. It’s ideal for high-demand, always-on NAS environments, but its enterprise focus may be overkill for smaller setups or home users. Its CMR technology ensures data integrity and consistent performance under heavy loads, but the lack of specific pricing info could influence purchasing decisions. For large-scale, mission-critical NAS deployments, this drive offers durability and speed at a professional level.
Pros:- Enterprise-grade reliability with high MTBF
- Designed for continuous operation with demanding workloads
- Supports heavy multi-user access and data integrity
- Large cache improves performance
Cons:- Likely more expensive than consumer-grade drives
- Designed mainly for enterprise, may be excessive for small setups
Best for: Enterprise NAS environments and large-scale data centers requiring robust, 24/7 storage
Not ideal for: Home users or small office NAS systems where budget and simplicity are priorities
- Capacity:20TB
- RPM:7200
- Interface:SATA 6 Gb/s
- Technology:CMR
- Cache:512 MB
- Workload Rate:550TB/year
Our verdict“This drive is best suited for enterprise NAS systems needing maximum uptime and durability, but it may be more than necessary for typical home use.”
Seagate Exos X20 20TB 7200 RPM SATA 6Gb/s 3.5-inch Hard Drive (Renewed)
This renewed Seagate Exos X20 provides a robust 20TB capacity with a 7200 RPM speed and a high MTBF of 2.5 million hours, making it suitable for enterprise data centers and RAID arrays. It offers a media speed of 150MB/s, which is slightly lower than some consumer drives but still adequate for large-scale storage tasks. Compared with the WD Ultrastar, it leans toward enterprise use with a focus on durability, but being renewed introduces some uncertainty about lifespan and warranty. For large-scale, high-demand environments, it offers a cost-effective enterprise-grade solution.
Pros:- High capacity suitable for enterprise needs
- Long MTBF and reliable performance
- Good balance of speed and durability for data centers
- SATA 6Gb/s interface supports modern infrastructure
Cons:- Renewed condition may have limited warranty
- Designed for enterprise, less user-friendly for casual setups
Best for: Data centers and large RAID arrays needing reliable, high-capacity drives at a potentially lower cost
Not ideal for: Casual home or small business users seeking new, warranty-backed drives with minimal risk
- Digital Storage Capacity:20 TB
- Hard Disk Interface:SATA 6Gb/s
- Rotational Speed:7200 rpm
- Media Speed:150 MB/s
- MTBF:2.5 million hours
- Form Factor:3.5 inches
Our verdict“This drive fits large-scale enterprise storage and RAID configurations where reliability and capacity outweigh initial cost and warranty concerns.”
Toshiba N300 20TB NAS 3.5-Inch Internal Hard Drive
The Toshiba N300 is a compelling choice for small office or home NAS setups, emphasizing reliability with a 7200 RPM speed, a 512 MB cache, and vibration sensors that improve stability in multi-drive environments. Compared to the Seagate Exos X20, it’s more tailored for less intensive NAS applications, offering a workload rating of 180TB/year, which suffices for typical small-scale use. However, it lacks advanced security features, and its design is less suited for enterprise environments. This drive offers a balanced mix of capacity, durability, and affordability for everyday NAS users.
Pros:- High capacity ideal for NAS systems
- Reliable 24/7 operation with a high workload rating
- Vibration sensors improve stability
- Designed for continuous NAS use
Cons:- Limited security features or encryption options
- Not suitable for desktop or non-NAS environments
Best for: Small business or home NAS users needing dependable, high-capacity storage
Not ideal for: Large enterprise data centers or users requiring enterprise-grade durability and security features
- Capacity:20TB
- Form Factor:3.5 inches
- Interface:SATA 6 Gb/s
- RPM:7200
- Cache:512 MB
- Workload Rating:180TB/year
Our verdict“This drive is well-suited for small office or home NAS setups that need reliable, high-capacity, and durable storage.”
Seagate IronWolf Pro 20TB Enterprise NAS Internal HDD
The Seagate IronWolf Pro 20TB excels in multi-bay NAS setups, thanks to its robust vibration sensors and optimized RAID performance. Compared to the Western Digital Ultrastar 20TB, it offers similar reliability but adds advanced health management tools, making it more suitable for continuous NAS operation. Its 5-year warranty and high workload rating reflect its enterprise focus, but this also means it’s less versatile for desktop use and may come at a higher cost. Designed specifically for NAS arrays, its features might be overkill for casual or small-scale home servers. The drive’s enterprise-grade build ensures durability but limits its appeal to those with compatible NAS hardware and a need for constant uptime.
Pros:- Optimized for multi-bay NAS with vibration sensors
- Reliable 24/7 operation with enterprise-grade durability
- 5-year warranty and data recovery support
- High workload capacity for continuous use
Cons:- Designed mainly for NAS, not suitable for desktop environments
- Higher price point due to enterprise features
- Requires compatible NAS hardware for best performance
Best for: IT professionals managing large NAS systems who need reliable, high-capacity drives with enterprise features.
Not ideal for: Home users or casual Plex server owners who prefer plug-and-play simplicity without enterprise-level complexity.
- Digital Storage Capacity:20 TB
- Hard Disk Interface:SATA 6 Gb/s
- Connectivity Technology:SATA
- Form Factor:3.5 inches
- Rotational Speed:7200 rpm
- Additional Features:Enterprise NAS, CMR, Vibration Sensors
- Compatible Devices:Desktop Hard Disk
- Specific Uses For Product:Business
Our verdict“This drive suits large-scale NAS setups demanding durability and enterprise reliability, but may be excessive for casual or home use.”
Seagate 20TB Exos Enterprise Hard Drive SATA
The Seagate Exos 20TB offers formidable capacity and enterprise-grade performance, making it ideal for data centers and large-scale storage clusters. It features low latency and efficient caching that outperform consumer drives like the Western Digital WD Ultrastar 20TB, especially in high-demand environments. Its 5-year warranty and 2.5 million hours MTBF underline its reliability for continuous operation. However, it’s primarily intended for professional infrastructure, so casual users will find it too specialized and possibly overpowered. Its internal SATA connection limits flexibility to server setups, and its lack of encryption features may be a drawback for sensitive data. For those deploying large-scale, high-availability storage solutions, this drive offers peace of mind through durability and performance.
Pros:- High capacity with 20TB storage
- Low latency with efficient caching
- Reliable 5-year warranty and 2.5 million hours MTBF
- Designed for enterprise and hyperscale environments
Cons:- Primarily for enterprise use, not consumer-grade
- Requires internal SATA connection, not external
- Lacks advanced encryption features
Best for: Data center operators and IT teams building hyperscale storage solutions who prioritize capacity and uptime.
Not ideal for: Home users or small-scale Plex servers with limited technical setup, as it’s geared toward enterprise deployments.
- Digital Storage Capacity:20 TB
- Hard Disk Interface:Serial ATA
- Connectivity Technology:SATA
- Data Recovery Service:Yes
- Hard Disk Form Factor:3.5 inches
- Rotational Speed:7200 rpm
- Read Speed:168 MB/s
- Cache Memory:20 MB
Our verdict“This drive is best for large-scale, high-demand data centers needing maximum capacity and reliability, but overkill for casual Plex users.”
Western Digital WD Ultrastar 20TB Internal Hard Drive WD200EDGZ
The WD Ultrastar WD200EDGZ provides a solid option for those needing a massive 20TB of storage with reliable, 24/7 performance. Compared to the Seagate Exos, it emphasizes consistent enterprise-grade operation with a focus on durability and long-term stability. Its 512MB cache speeds up data access, making it suitable for demanding data center tasks. However, as a renewed product, it might carry warranty or support limitations, and its bulkier 3.5-inch form factor could be incompatible with some home server setups. Its high capacity and enterprise focus make it less ideal for typical home or small business users who don’t require such scale, but it’s a dependable choice for heavy workloads.
Pros:- Massive 20TB capacity for extensive data needs
- Reliable enterprise-class performance
- Fast data transfer with SATA 6Gb/s interface
- Designed for 24/7 operation
Cons:- Renewed product may have warranty limitations
- Heavy and large, requiring compatible hardware
- Potential overkill for basic home media servers
Best for: Large-scale data centers or enterprise NAS setups requiring proven reliability and high capacity.
Not ideal for: Casual home users or small Plex servers seeking a plug-and-play solution without potential renewal concerns.
- Digital Storage Capacity:20 TB
- Hard Disk Interface:Serial ATA-600
- Connectivity Technology:SATA
- Additional Features:24/7 Availability
- Hard Disk Form Factor:3.5 inches
- Rotational Speed:7200 rpm
- Read Speed:600 gigabits_per_second
- Cache Memory:512 MB
Our verdict“This drive is perfect for enterprise environments demanding high capacity and durability, but less suitable for casual or compact setups.”
Western Digital Ultrastar DC HC580 24TB 7.2K RPM SATA Enterprise Hard Drive (Renewed)
The WD Ultrastar DC HC580 24TB stands out with its massive 24TB capacity, ideal for data centers and busy server environments. Its 7,200 RPM speed and 512MB cache deliver consistent performance for large-scale applications, similar to the Seagate Exos but with a focus on enterprise durability. Its hot-swap feature adds convenience for maintenance in server racks. However, being a renewed product, it may come with limited warranty and support, and its size may require specific server compatibility. For casual Plex users, this drive offers more capacity and reliability than needed, but for high-demand environments, it delivers proven performance and longevity.
Pros:- High capacity with 24TB
- Reliable 7200 RPM performance
- Supports hot-swap for easy maintenance
- Designed for 24/7 enterprise use
Cons:- Renewed product may have limited warranty
- Heavy and potentially incompatible with some home hardware
- Overly large for small or casual Plex servers
Best for: Data centers and enterprise-grade server environments needing continuous operation and high capacity.
Not ideal for: Home or small business users seeking a straightforward, plug-and-play drive without renewal concerns.
- Digital Storage Capacity:24 TB
- Hard Disk Interface:Serial ATA
- Connectivity Technology:SATA
- Additional Features:Hot-Swap
- Hard Disk Form Factor:3.5 inches
- Rotational Speed:7200 rpm
- Data Transfer Rate:600 megabytes_per_second
- Cache Memory:512 MB
Our verdict“This drive is tailored for large-scale, high-availability storage needs, but may be an unnecessary expense for smaller or home setups.”
How We Picked
The drives in this roundup were evaluated based on several criteria: performance metrics such as RPM and cache size, durability for 24/7 NAS or server use, compatibility with Plex media servers, and overall value for the price. Reliability and long-term durability were prioritized, especially for continuous media streaming. We also considered user reviews and manufacturer reputation to assess build quality and support. This approach ensures the selected drives are well-suited for demanding Plex server environments, with clear distinctions based on use case and budget.| hard drives for plex servers 20tb | Hard Disk Interface |
|---|---|
| MDD MAXDIGITALDATA 20TB 7200 R | Serial ATA-600 |
| Western Digital 20TB WD Red Pr | — |
| Western Digital 20TB WD Red Pr | — |
| Seagate Exos X20 20TB 7200 RPM | SATA 6Gb/s |
| Toshiba N300 20TB NAS 3.5-Inch | — |
| Seagate IronWolf Pro 20TB Ente | SATA 6 Gb/s |
| Seagate 20TB Exos Enterprise H | Serial ATA |
| Western Digital WD Ultrastar 2 | Serial ATA-600 |
| Western Digital Ultrastar DC H | Serial ATA |
Factors to Consider When Choosing Hard Drives For Plex Servers 20tb
When selecting a 20TB hard drive for a Plex server, there are key factors that influence long-term satisfaction and performance. Understanding these considerations helps avoid common pitfalls, such as underestimating workload demands or choosing incompatible drives, which can lead to data loss or streaming issues.Performance and Spin Rate
For a Plex server that streams multiple media files simultaneously, a drive with a 7200 RPM spin rate offers faster read/write speeds, reducing buffering and lag. While 5400 RPM drives are more energy-efficient and quieter, they may struggle under heavy media loads. Prioritizing a higher RPM and larger cache size can significantly improve streaming smoothness, especially with large 4K files.
Reliability and Durability
Since Plex servers often run continuously, selecting drives designed for NAS or enterprise use is advisable. These models typically feature better vibration tolerance, error recovery, and longer MTBF ratings. Cheaper drives may save money upfront but often fail prematurely under constant operation, risking data loss or downtime. Balancing cost and reliability is key—sometimes investing in a premium drive reduces total ownership costs.
Compatibility and Interface
Ensuring the drive uses SATA 6Gb/s interfaces is essential for compatibility with most modern NAS enclosures and servers. Additionally, check that the drive fits your physical setup—most 20TB drives are 3.5-inch, but some niche models may differ. Compatibility is critical to avoid installation issues and ensure optimal performance.
Cost and Value
High-capacity drives vary widely in price, often reflecting their intended use—enterprise versus consumer-grade. While enterprise drives like Seagate IronWolf Pro command a premium, they often last longer and withstand heavier workloads. Consider your budget and projected usage—sometimes a mid-tier NAS drive offers the best balance of cost and reliability for home Plex servers.
Noise and Power Consumption
Since a Plex server might operate in a living space, noise levels matter. Drives with lower RPM or specialized cooling can operate quietly, but might trade off some performance. Power consumption is also a factor if the server runs 24/7; energy-efficient drives can save money over time but may have slightly reduced performance.
Frequently Asked Questions
Is it better to choose a NAS-specific or enterprise-grade drive for my Plex server?
Choosing between NAS-specific and enterprise-grade drives depends on your usage intensity and budget. NAS drives are designed for continuous operation and generally offer good reliability at a lower cost, making them suitable for most home Plex servers. Enterprise drives are built for heavy workloads and maximum durability, which might be overkill for lighter, home-based setups but advantageous if you plan to run the server constantly with multiple streams or heavy data transfers.
How important is cache size when selecting a 20TB drive for Plex?
Cache size directly impacts how quickly a drive can access frequently requested data, which is vital for smooth streaming in Plex. Larger caches, such as 512MB, help reduce latency and prevent buffering during high-demand playback. For a 20TB media library, prioritizing drives with at least 256MB to 512MB cache ensures better performance, especially when multiple users access content simultaneously.
Can I use a regular desktop hard drive for my Plex server instead of a NAS or enterprise drive?
While regular desktop drives are cheaper and more readily available, they are not ideal for continuous server use. Desktop drives are typically designed for intermittent use, and their reliability can decline rapidly under 24/7 operation. For a Plex server that streams media regularly, choosing a NAS-optimized or enterprise-grade drive provides the durability needed to prevent data loss and minimize downtime.
What is the impact of RPM on streaming performance?
Higher RPM drives, such as 7200 RPM, generally offer faster data access speeds, which can translate into smoother streaming, especially with high-bitrate or 4K content. Lower RPM drives, like 5400 RPM, tend to be quieter and consume less power but may introduce lag or buffering during peak loads. For a high-performance Plex server, prioritizing 7200 RPM drives is typically advisable.
How does vibration and heat affect drives in a Plex server setup?
Vibration and heat are critical factors that influence drive longevity, especially in densely packed or multi-drive enclosures. Excessive vibration can cause head crashes or read errors, while high temperatures accelerate wear and reduce lifespan. Selecting drives with vibration sensors, good cooling, and proper airflow helps maintain optimal operating conditions, ensuring your media library remains accessible over time.
