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Rectangular 2.5 inch SATA SSD with black metal casing and label

Western Digital

Western Digital Red SA500 WDS200T1R0A 2TB 2.5" SATA internal SSD

SKU CH-K3S3-ECPBR MPN WDS200T1R0A

2.5-inch SATA SSD with 2TB of 3D NAND storage built for NAS caching, delivering up to 560 MB/s reads and 95,000 random read IOPS with 2M-hour MTTF endurance

  • Device TypeInternal Solid State Drive (SSD)
  • Used ForConsumer
  • Form Factor2.5"
  • Capacity2TB
  • Memory Components3D NAND
  • InterfaceSATA III

Options 2TB

  • Optimised for NAS caching to accelerate frequent file access
  • 3D NAND delivers up to 560 MBps sequential read speed
  • Up to 95,000 IOPS random read for responsive multi-user workloads
  • 2M-hour MTTF rating supports continuous 24/7 operation
  • Low idle power draw of 56 mW reduces NAS energy use

NAS-optimised caching drive

The Western Digital Red SA500 WDS200T1R0A is a 2TB 2.5-inch internal SSD built for network-attached storage. It uses 3D NAND and a SATA III interface to accelerate access to frequently used files in home or small-business NAS units. The drive is rated for 24/7 operation with an MTTF of up to 2M hours.

Suited for NAS caching, not primary bulk storage

This SSD targets users who need a high-endurance cache tier for OLTP databases, multi-user workloads, photo rendering or 4K and 8K video editing. It is less appropriate for archival-only arrays where sequential throughput matters more than random IOPS and low latency.

SATA III interface decides compatibility

The drive connects through a standard SATA III port and delivers up to 560 MBps sequential read and 530 MBps sequential write. Random performance reaches 95,000 IOPS read and 85,000 IOPS write. Systems without a 2.5-inch SATA bay or a compatible SATA controller cannot use this drive.

Highlights

  • Optimised for NAS caching to accelerate frequent file access
  • 3D NAND delivers up to 560 MBps sequential read speed
  • Up to 95,000 IOPS random read for responsive multi-user workloads
  • 2M-hour MTTF rating supports continuous 24/7 operation
  • Low idle power draw of 56 mW reduces NAS energy use

Specifications

BrandWestern Digital
SeriesRed SA500
ModelWDS200T1R0A
Device TypeInternal Solid State Drive (SSD)
Used ForConsumer
Form Factor2.5"
Capacity2TB
Memory Components3D NAND
InterfaceSATA III
Max Sequential ReadUp to 560 MBps
Max Sequential WriteUp to 530 MBps
4KB Random ReadUp to 95,000 IOPS
4KB Random WriteUp to 85,000 IOPS
MTTFUp to 2M hours
FeaturesStorage optimized for caching in NAS systems to rapidly access your most frequently used files.
Superior endurance can handle the heavy read and write loads demanded by NAS, giving you the reliability you need in a 24/7 environment.
Purpose-built for NAS with proven Western Digital 3D NAND to deliver maximum SATA performance to both home and business users.
Reduces latency and improves responsiveness for OLTP databases, multi-user environments, photo rendering, 4K and 8K video editing, and more.
Available in 2.5" and M.2 form factors to fit the slots in modern NAS systems.
Capacities
Power Consumption (Idle)Slumber (mW): 56
DEVSLP (mW): 5-12
Power Consumption (Active)Average Active Power (mW): 60
Max Read Operating (mW): 3,000
Max Write Operating (mW): 3,800
Operating Temperature0°C ~ +70°C
Storage Temperature-55°C ~ +85°C
Max Shock Resistance1,500G @ 0.5 msec half sine
Max Vibration ResistanceOperating: 5.0 gRMS, 10-2000 Hz
Non-operating: 4.9 gRMS, 7-800 Hz
Height7.00mm
Width69.85mm
Depth100.20mm
Weight57.90g
Shipping weight0.06 kg
Package size119 × 102 × 23 mm

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Questions about this item

Will this 2.5 inch drive fit the drive bays in my Synology or QNAP NAS?

The drive uses the standard 2.5 inch SATA form factor, which matches the drive trays in most modern Synology, QNAP, Asustor and TerraMaster NAS units that accept 2.5 inch drives.

Can I use this SSD as a read-write cache to speed up my mechanical NAS volumes?

Yes, the drive is optimized for NAS caching workloads with up to 95,000 random read IOPS and 85,000 random write IOPS to accelerate frequently accessed files and databases.

How much power does the drive draw during heavy write activity?

Maximum write operating power is 3,800 mW, while idle slumber power is 56 mW and DEVSLP drops to 5-12 mW for low standby consumption.

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