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Silver 2.5 inch SATA SSD with SanDisk label

SanDisk

SanDisk WDS500G1R0A-68A4W0 500GB 2.5" SATA internal SSD

SKU CH-8W42-M5JJ4 MPN WDS500G1R0A-68A4W0

A 2.5" SATA SSD with 500GB of 3D NAND storage optimised for NAS caching, delivering 560 MBps read and 530 MBps write speeds

  • Device TypeInternal Solid State Drive (SSD)
  • Used ForConsumer
  • Form Factor2.5"
  • Capacity500GB
  • Memory Components3D NAND
  • InterfaceSATA III

Options 500GB

  • Optimised for NAS caching to accelerate frequent file access
  • High endurance handles heavy 24/7 read and write workloads
  • 3D NAND delivers maximum SATA throughput up to 560 MBps read
  • Low latency improves responsiveness for databases and 4K or 8K video editing
  • 5 inch form factor fits standard NAS drive bays

NAS caching SSD

This 2.5 inch SATA drive is built for network attached storage appliances that need a fast cache tier. It targets home and small business users who want quicker access to frequently used files without moving to a full flash array. The 500GB capacity fits common NAS bays and leaves room for expansion.

SATA III sequential speeds

The controller delivers up to 560 MBps read and 530 MBps write over the SATA III link. Those figures decide whether the drive can saturate the bus during heavy caching workloads. Random performance reaches 95,000 IOPS read and 85,000 IOPS write for mixed metadata traffic.

Suits 24/7 NAS caching, not boot or archive

The firmware and 3D NAND are tuned for constant read write cycles in a NAS cache role. Users needing a primary OS drive or cold archival storage should consider drives optimised for those workloads instead.

Points forts

  • Optimised for NAS caching to accelerate frequent file access
  • High endurance handles heavy 24/7 read and write workloads
  • 3D NAND delivers maximum SATA throughput up to 560 MBps read
  • Low latency improves responsiveness for databases and 4K or 8K video editing
  • 5 inch form factor fits standard NAS drive bays

Caractéristiques

BrandWestern Digital
SeriesRed SA500
ModelWDS500G1R0A
Device TypeInternal Solid State Drive (SSD)
Used ForConsumer
Form Factor2.5"
Capacity500GB
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): 5-7
Power Consumption (Active)Average Active Power (mW): 52
Max Read Operating (mW): 2,050
Max Write Operating (mW): 3,350
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
Weight37.40g
Poids d’expédition0.07 kg
Dimensions du colis128 × 100 × 25 mm

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Questions sur cet article

What does the 560 MBps sequential read figure mean once this drive is installed in a real NAS?

In a NAS the 560 MBps sequential read speed lets the cache serve hot files to multiple users at near-wire SATA speeds, cutting latency for OLTP databases, photo rendering and 4K or 8K video editing workloads.

The drive uses SATA III — what does that interface cap in practice?

SATA III caps the drive at 6 Gbps, so the 560 MBps read and 530 MBps write ratings are the practical ceiling you will see in any 2.5-inch bay that supports the standard.

What does the 2.5-inch form factor need to fit or mount in a NAS?

The 2.5-inch form factor fits standard drive trays or sleds in modern NAS units; no extra adapter is required beyond the bay that accepts 2.5-inch SATA drives.

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