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Black 2.5 inch SATA enterprise SSD with silver label

Black Diamond Memory

Black Diamond Memory BDSSDS256G 2.5" 256GB SATA enterprise SSD

SKU CH-CB4R-H29M2 MPN BDSSDS256G

2.5-inch SATA enterprise SSD with 256 GB capacity, up to 520 MB/s read and 470 MB/s write speeds, and a 2,000,000-hour MTBF

  • Form Factor2.5"
  • Capacity256GB
  • InterfaceSATA III
  • ControllerMarvell 88SS9188
  • Max Sequential ReadUp to 520 MBps
  • Max Sequential WriteUp to 470 MBps

Options 256GB

  • Faster boot and app loading up to 4x over HDDs
  • Sequential read up to 520 MBps and write up to 470 MBps
  • 5" SATA III form factor fits standard drive bays
  • Marvell 88SS9188 controller with power-loss data protection
  • 2,000,000-hour MTBF for enterprise-grade reliability

Sonic Series enterprise SSD

The Black Diamond Memory BDSSDS256G is a 2.5 inch SATA III solid state drive built for server and storage arrays. Its 256 GB capacity and Marvell 88SS9188 controller suit administrators who need dependable read performance for boot volumes or mixed workloads.

7 mm z-height and standard SATA connectors

The drive measures 7.00 mm high, 69.86 mm wide and 100.50 mm deep, matching the common 2.5 inch bay. With no moving parts it runs silently, resists shock and reacts to sudden power loss to protect stored data from corruption.

SATA III 6 Gbps interface limits

Sequential reads reach up to 520 MBps and writes up to 470 MBps, which is the practical ceiling of the SATA bus. Buyers who need higher throughput or lower latency should consider drives that use a faster interface. MTBF is rated at 2,000,000 hours and the operating range spans 0 °C to 70 °C.

Highlights

  • Faster boot and app loading up to 4x over HDDs
  • Sequential read up to 520 MBps and write up to 470 MBps
  • 5" SATA III form factor fits standard drive bays
  • Marvell 88SS9188 controller with power-loss data protection
  • 2,000,000-hour MTBF for enterprise-grade reliability

Specifications

BrandBlack Diamond Memory
SeriesSonic Series
ModelBDSSDS256G
Form Factor2.5"
Capacity256GB
InterfaceSATA III
ControllerMarvell 88SS9188
Max Sequential ReadUp to 520 MBps
Max Sequential WriteUp to 470 MBps
MTBF2,000,000 hours
FeaturesFaster: System boot up and application loading speeds up to about 4x faster than typical HDDs
Reliable: Durable, with no moving parts leaving the SSD less likely to fail
Security: Will react to sudden power loss, protecting valuable data from corruption before it turns off
Economical: Optimized design allowing for a more affordable switch to SSD Multiple Capacities - For the more demanding workloads
Silent: Runs without noise
Resistance: Shock and vibration resistan
Operating Temperature0°C ~ +70°C
Height7.00mm
Width69.86mm
Depth100.50mm
Shipping weight0.14 kg
Package size100 × 70 × 7 mm

Other versions of this model

2 more in the same range

Same family, different memory, cooler or clock — compare before you commit.

Questions about this item

What maximum sequential speeds does the SATA III interface allow on this drive?

The SATA III link caps practical throughput at 520 MBps read and 470 MBps write for this model.

Will the 7.00 mm height fit a standard 2.5 inch bay or caddy?

Yes, the 7.00 mm z-height matches the common 2.5 inch form factor used in most server and laptop bays.

How is the drive installed and what step is often missed?

Connect the SATA data and power cables, secure the 69.86 mm × 100.50 mm chassis with screws, then initialise the 256 GB volume in the OS — skipping initialisation leaves the drive invisible.

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