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Rectangular 2.5 inch SATA SSD with black metal casing and silver label

Kingston Technology Corp.

Kingston Technology Corp. SSDNow KC400 SKC400S37/256G 2.5" 256GB SATA enterprise SSD

SKU CH-0DJB-QA239

2.5-inch SATA solid-state drive with 256 GB capacity, up to 550 MB/s read and 540 MB/s write, plus 88,000 read and 89,000 write IOPS

  • Form Factor2.5"
  • Capacity256GB
  • InterfaceSATA III
  • ControllerPhison 3110
  • Max Sequential ReadUp to 550 MBps
  • Max Sequential WriteUp to 540 MBps

Options 256GB Single Drive

  • 512GB Single Drive
  • 256GB Single Drive

Struck-through versions exist but are not stocked here.

  • Faster boot and load times with up to 550 MBps sequential read
  • Responsive multitasking backed by up to 88,000 IOPS random read
  • Reliable long-term operation with 1,000,000 hours MTBF
  • Low power draw at 0.255W idle for cooler running
  • Compact 2.5 inch 7.00mm height fits standard drive bays

Enterprise SATA III SSD

The Kingston SSDNow KC400 SKC400S37/256G is a 2.5 inch enterprise solid state drive with a 256GB capacity. It connects via the SATA III interface and uses a Phison 3110 controller. This drive targets business environments that require reliable storage for mixed read and write workloads.

Sustained workload behaviour

Sequential write speeds reach up to 540 MBps while random write performance hits 89,000 IOPS. Active power draw during write operations is 3.740W, rising from 1.220W during reads. The drive operates between 0°C and 70°C and withstands 2.17G peak vibration while running, supporting continuous operation in standard server bays.

SATA III interface limits

The SATA III interface caps sequential throughput at 550 MBps read and 540 MBps write, which this drive saturates. Random 4KB performance tops out at 88,000 read and 89,000 write IOPS. The 7mm height fits standard 2.5 inch drive bays, but the interface bandwidth prevents higher throughput than the stated maximums.

Highlights

  • Faster boot and load times with up to 550 MBps sequential read
  • Responsive multitasking backed by up to 88,000 IOPS random read
  • Reliable long-term operation with 1,000,000 hours MTBF
  • Low power draw at 0.255W idle for cooler running
  • Compact 2.5 inch 7.00mm height fits standard drive bays

Specifications

BrandKingston
SeriesSSDNow KC400
ModelSKC400S37/256G
Form Factor2.5"
Capacity256GB
InterfaceSATA III
ControllerPhison 3110
Max Sequential ReadUp to 550 MBps
Max Sequential WriteUp to 540 MBps
4KB Random ReadUp to 88,000 IOPS
4KB Random WriteUp to 89,000 IOPS
MTBF1,000,000 hours
Features15 times faster than a hard drive
Business class reliability with advanced data protection
Legendary pre- and post-sales support
Available in a range of full capacities
Power Consumption (Idle)0.255W
Power Consumption (Active)1.220W (Read)
3.740W (Write)
Operating Temperature0°C ~ +70°C
Storage Temperature-40°C ~ +85°C
Max Vibration ResistanceOperating: 2.17G Peak (7-800Hz)
Non-operating: 20G Peak (10-2000Hz)
Height7.00mm
Width69.85mm
Depth100.00mm
Weight60.00g

Questions about this item

How much power does the SSDNow KC400 draw when reading or writing continuously all day?

The drive uses 1.220W during read operations and 3.740W during write operations, with an idle draw of 0.255W.

Does the 2.5" SATA III KC400 need any adapter or bracket to fit my server bay?

It fits any standard 2.5" SATA drive bay or hot-swap tray; no extra adapter is required beyond the SATA data and power cables.

Will the Phison 3110 controller on this 256GB drive work with a SATA II backplane I still use?

Yes, the SATA III interface is backward compatible with SATA II ports, though sequential speeds will be limited to the older link rate.

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