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Black rectangular 2.5 inch SATA SSD with Kingston A400 label

Kingston Technology Corp.

Kingston Technology Corp. SA400S37/240G 240GB 2.5" SATA internal SSD

SKU CH-SG82-W66PK MPN SA400S37/240G

A 240GB 2.5" SATA internal SSD using 3D NAND, delivering sequential reads up to 500 MBps and writes up to 350 MBps with no DRAM cache, shock and vibration resistance.

  • Device TypeInternal Solid State Drive (SSD)
  • Used ForConsumer
  • Form Factor2.5"
  • Capacity240GB
  • Memory Components3D NAND
  • InterfaceSATA III

Options 240GB

  • Faster boot and file transfers with 500 MBps read speed
  • Quicker saves and installs at 350 MBps write speed
  • Shock and vibration resistance protects data in notebooks
  • Low 0.279 W active draw runs cooler than a hard drive
  • 1,000,000 hour MTBF signals long-term reliability

Capacity and interface

The Kingston A400 240GB drive uses a 2.5 inch SATA form factor and 3D NAND flash memory. It targets users who want faster boot and load times on systems limited to the SATA interface. The lack of a DRAM cache is offset by host memory buffer support for everyday responsiveness.

Sustained load behaviour

Sequential write speeds reach 350 MBps while reads peak at 500 MBps, and the controller maintains these rates across typical consumer workloads. Average active power stays at 0.279 W with a maximum write draw of 1.535 W, so thermal output remains low inside cramped notebook chassis. The drive operates reliably from 0 °C to 70 °C and endures 2.17 G vibration while running.

Upgrade context

It replaces any 2.5 inch mechanical hard drive up to 960 GB, delivering roughly ten times the speed for start-up, file transfers and application launches. The jump is most worthwhile when reviving an older laptop or desktop that cannot accept newer interfaces but still has a SATA bay. Shock resistance of 20 G while powered off adds durability for mobile use.

Highlights

  • Faster boot and file transfers with 500 MBps read speed
  • Quicker saves and installs at 350 MBps write speed
  • Shock and vibration resistance protects data in notebooks
  • Low 0.279 W active draw runs cooler than a hard drive
  • 1,000,000 hour MTBF signals long-term reliability

Specifications

BrandKingston
SeriesA400
ModelSA400S37/240G
Device TypeInternal Solid State Drive (SSD)
Used ForConsumer
Form Factor2.5"
Capacity240GB
Memory Components3D NAND
InterfaceSATA III
ProtocolSATA
CacheNo DRAM (HMB)
Max Sequential ReadUp to 500 MBps
Max Sequential WriteUp to 350 MBps
MTBF1,000,000 hours
Features10x faster than a HDD - With incredible read/write speeds the A400 SSD will not only increase performance but can also be used to breathe new life into older systems.
Rugged - A400 is shock- and vibration-resistant for rugged reliability when used in notebooks and other mobile computing devices.
Multiple capacities - Available in 120GB, 240GB and 480GB capacities, A400 is designed to suit anyone's needs.
Ideal for desktops and notebooks - A400 has a 7mm form factor to fit in a wider array of systems. It's ideal for slimmer notebooks and in systems with limited available space.
Power Consumption (Idle)0.195W
Power Consumption (Active)0.279W Avg
0.642W (MAX) Read
1.535W (MAX) 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
Width69.90mm
Depth100.00mm
Weight41.00g
Shipping weight0.07 kg
Package size182 × 130 × 3 mm

Other versions of this model

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Questions about this item

How much power does the A400 240GB draw during all-day operation?

The drive averages 0.279W active and peaks at 1.535W during write bursts, while idle power is only 0.195W. With no moving parts it runs silently and stays within the 0°C to 70°C operating range.

What connector and bay does the SA400S37/240G need to work?

It requires a standard SATA III data cable and a SATA power connector from the host, plus a 2.5" drive bay or bracket. No extra drivers are needed for Windows, Linux or macOS.

Will this 2.5" SATA SSD work in an older laptop that still uses a mechanical hard drive?

Yes. The SATA III interface is backward compatible with SATA II and SATA I ports, so the drive will function in legacy notebooks and desktops, delivering up to 500MB/s read and 350MB/s write where the link allows.

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