HGST (a Western Digital company)
Western Digital WD Red SN700 NVMe Internal Solid State Drive
Best high-capacity storage upgrade for demanding home or small business NAS.
Engineered for high-performance Network Attached Storage (NAS) systems, this internal solid-state drive delivers substantial speed improvements over older storage technologies by utilizing the NVMe interface. It offers a generous 4TB capacity, perfect for demanding home or small business storage needs. Data transfer is rapid, featuring maximum read speeds up to 3400 MB/s and write speeds up to 3100 MB/s. Built for longevity, it boasts an impressive 5100 TBW endurance rating and is supported by a comprehensive 5-year limited warranty, ensuring reliable continuous operation.
$1189.00
More WD Red Options
Owner Satisfaction
4.7
/ 5
Category Rank
36
/ 4138
#36 in Hard Drives
Price vs Category Average
+125%
Above average
Capacity
4
/ TB
Who it's for
- NAS users requiring constant uptime and heavy data endurance
- Professionals needing faster data access for shared network storage
- System administrators seeking reliable, optimized performance for NAS environments
Who should skip it
- Budget-conscious buyers looking for standard consumer storage value
- General PC users who do not require specialized NAS caching
- Gamers and creators demanding maximum sequential speed for desktop tasks
Performance breakdown
NAS Optimization
Purpose-built architecture ensures seamless performance in demanding 24/7 storage environments.
Write Endurance
Industry-leading TBW rating handles heavy, continuous data workloads with ease.
Transfer Speeds
NVMe interface provides rapid data access for high-speed network file operations.
Storage Density
Massive 4TB capacity fits comfortably within a compact M.2 footprint.
Reliability Assurance
Five-year warranty coverage provides long-term peace of mind for critical data.
Form Factor Efficiency
Standard M.2 2280 design integrates effortlessly into modern NAS drive bays.
Key Specs
Capacity
4 TB
Interface
PCI Express NVMe 3.0 x4
Maximum Read Transfer Rate
3400 MB/s
Maximum Write Transfer Rate
3100 MB/s
Endurance (TBW)
5100 TB
Form Factor
M.2 2280
Compatibility
NAS Systems
Limited Warranty
5 Year
Know before you buy
While the WD Red SN700 is optimized for the 24/7 workload of NAS environments, it is physically compatible with any motherboard that supports an M.2 2280 NVMe slot. It will function in a desktop PC, though its endurance features are primarily tailored for constant data access and server-like tasks.
TBW, or Terabytes Written, measures the total amount of data you can write to the drive before it reaches its wear limit. A rating of 5100 TBW is exceptionally high, indicating that this drive is built to handle the heavy, continuous read-and-write cycles typical of NAS storage without failing prematurely.
This drive uses the standard M.2 2280 form factor. You should check your NAS manufacturer's specifications to ensure your unit has an M.2 NVMe slot, as some older or entry-level NAS models only support traditional 3.5-inch SATA hard drives.
Because this drive is designed for high-performance NAS systems, it can generate heat during sustained data transfers. If your NAS enclosure has limited airflow, we recommend ensuring the M.2 slot has a thermal pad or integrated heatsink to maintain optimal operating temperatures.
The NVMe interface allows for much higher bandwidth and lower latency by communicating directly with the system's PCIe bus. This results in significantly faster read and write speeds, which helps reduce bottlenecks when multiple users are accessing files on your NAS simultaneously.
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