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Rectangular 2.5 inch SATA SSD with silver metal casing and label

SanDisk

SanDisk WDS500G1R0B-68A4Z0 500GB SATA internal SSD

SKU CH-3E3G-5ZZ29 MPN WDS500G1R0B-68A4Z0

SATA internal SSD with 3D NAND built for NAS caching, up to 560 MBps read and 530 MBps write

  • Total capacity1 TB
  • Sequential read speedUp to 560 MB/s
  • Sequential write speedUp to 530 MB/s
  • Interface typeSATA III
  • Form factor2.5 in (6.35 cm)
  • Product typeInternal Solid State Drive (SSD)

Model 1TB

  • Optimised for NAS caching with SATA interface
  • High endurance for 24/7 NAS workloads
  • 3D NAND delivers up to 560 MBps read
  • Up to 95,000 IOPS random read for responsiveness
  • 5-inch form factor fits standard NAS bays

NAS cache drive

The SanDisk WDS500G1R0B-68A4Z0 is a SATA solid-state drive built for network-attached storage caching. It targets home and business users who need rapid access to frequently used files in a 24/7 environment. The 2.5-inch form factor fits standard NAS drive bays. 3D NAND flash provides the endurance required for continuous read and write workloads.

500 GB capacity headroom

At 500 GB the drive holds a practical cache set for OLTP databases, multi-user file shares, photo rendering and 4K or 8K video editing. Sequential reads reach 560 MBps and writes 530 MBps, while random performance delivers 95,000 read IOPS and 85,000 write IOPS. Heavy sustained writes will eventually saturate the SATA link and the drive's write bandwidth limit.

SATA III interface

The drive connects through a SATA III port using the SATA protocol. This interface caps maximum throughput at the SATA III line rate, so the drive cannot exceed the quoted 560 MBps read and 530 MBps write speeds. Compatibility is limited to systems with a 2.5-inch SATA bay or an appropriate adapter.

How it compares

Measured against everything we stock in Internal NVMe & SATA SSDs, at today’s prices. Recalculated every night.

Price $60.99
Cheaper than about 86% of the 1,994 comparable items (median $180.49).
Total capacity 1 TB
Typical for this category: the median of 1,368 items is 1 TB.
Sequential read speed Up to 560 MB/s
Lower than about 60% of the 1,180 comparable items (median 2,400 MB/s).
Price per TB $60.99 per TB
Cheaper than about 95% of the 1,362 comparable items (median $165.50 per TB).

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Specifications

Product
Brand nameWestern Digital
Product lineRed SA500
Model nameWDS100T1R0A
Total capacity1 TB
Product typeInternal Solid State Drive (SSD)
Intended useConsumer
Performance
Sequential read speedUp to 560 MB/s
Sequential write speedUp to 530 MB/s
Random read (4K)Up to 95,000 IOPS
Random write (4K)Up to 85,000 IOPS
Storage
NAND flash type3D NAND
Connectivity
Connection protocolSATA
Ports & slots
Interface typeSATA III
Power
Idle power drawSlumber (mW): 56
DEVSLP (mW): 5-12
Active power drawAverage Active Power (mW): 60
Max Read Operating (mW): 2,550
Max Write Operating (mW): 3,750
Size & build
Form factor2.5 in (6.35 cm)
Overall height7 mm
Overall width69.85 mm
Product depth100.2 mm
Product weight37.4g
Shipping weight0.04 kg
Package size124 × 102 × 23 mm
Environment & compliance
Operating temperature range0 °C to 70 °C
Storage temperature range-55 °C to 85 °C
Max shock tolerance1,500G @ 0.5 msec half sine
Vibration toleranceOperating: 5.0 gRMS, 10-2000 Hz
Non-operating: 4.9 gRMS, 7-800 Hz
More details
Mean time to failureUp to 2M hours

Other versions of this model

5 more in the same range

Questions about this item

Will this 2.5-inch SATA SSD fit the drive bay in my Synology or QNAP NAS?

Yes, the 2.5-inch form factor matches the standard drive trays used in most modern NAS units from Synology, QNAP and other brands.

Can I use this drive as a read-write cache to speed up a mechanical volume?

The drive is purpose-built for NAS caching workloads, with 3D NAND and endurance rated for 24/7 operation to handle heavy read and write loads.

What sequential and random speeds can I expect over a SATA III link?

Up to 560 MBps sequential read, 530 MBps sequential write, 95,000 IOPS random read and 85,000 IOPS random write.

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