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Rectangular black 2.5-inch SATA SSD with label and gold connectors

Kingston Technology Corp.

Kingston Technology Corp. A400 240GB internal SSD

SKU CH-9HFM-BRCEN

A 240GB 2.5-inch SATA internal SSD delivering up to 500MB/s read and 350MB/s write speeds for faster boot and file loading

  • Total capacity240 GB
  • Sequential read speedUp to 500 MB/s
  • Sequential write speedUp to 350 MB/s
  • Interface typeSATA III (6Gb/s)
  • Form factor2.5 in, 7 mm thickness
  • Random read (4K)Up to 80,000 IOPS

A400 240GB

  • Faster boot and file loading with up to 500MB/s sequential read
  • Responsive everyday performance from up to 350MB/s sequential write
  • Smooth multitasking supported by up to 80,000 random read IOPS
  • Reliable data integrity via built-in LDPC error correction
  • Durable shock resistance rated at 1500G for mobile use

Capacity and form factor

The Kingston A400 is a 240GB internal solid state drive built in the 2.5-inch, 7mm form factor. It targets desktop PCs, notebooks and all-in-one systems that need a straightforward storage upgrade. The drive uses a SATA III 6Gb/s interface and a Phison S11 controller with 3D TLC NAND. It is designed for plug-and-play installation in mainstream computers.

SATA III interface

The single specification that decides fit is the SATA III 6Gb/s interface with backward compatibility to SATA 2.0 and 1.0. Sequential reads reach up to 500MB/s and writes up to 350MB/s, while 4KB random reads hit 80,000 IOPS and writes 25,000 IOPS. Endurance is rated at 80TBW and the controller includes LDPC error correction. These figures define whether the drive matches the host system’s bandwidth and workload expectations.

Build integration

The drive connects through a standard SATA 7-pin data connector and a 15-pin power connector, requiring no extra cables or adapters beyond what a typical chassis provides. Active power draw is 1.5W typical and idle draw is 0.3W typical, freeing thermal headroom in compact builds. Shock resistance of 1500G and vibration resistance of 2.17G allow reliable operation in mobile or transportable systems. The mechanical-free design adds silent operation to any configuration.

How it compares

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

Price $104.99
Cheaper than about 71% of the 1,994 comparable items (median $180.49).
Total capacity 240 GB
Lower than about 90% of the 1,368 comparable items (median 1 TB).
Sequential read speed Up to 500 MB/s
Lower than about 90% of the 1,180 comparable items (median 2,400 MB/s).
Price per TB $437.46 per TB
Pricier than about 84% of the 1,362 comparable items (median $165.50 per TB).

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Specifications

Product
Brand nameKingston
Product lineA400
Model nameKingston A400 240 GB
Part numberSA400S37/240G
Total capacity240 GB
Product typeInternal Solid State Drive / 2.5 in SATA SSD
Intended useDesktop PC, Notebook Laptop, All-in-one Computer Storage Upgrade
Performance
Sequential read speedUp to 500 MB/s
Sequential write speedUp to 350 MB/s
Random read (4K)Up to 80,000 IOPS
Sustained sequential read rate500 MB/s
Sustained sequential write rate350 MB/s
Random write (4K)Up to 25,000 IOPS
Storage
Controller chipPhison S11
Ports & slots
Interface typeSATA III (6Gb/s)
ConnectionSATA 7-pin (data) + 15-pin (power)
Power
Active power draw1.5 W (typical)
Idle power draw0.3 W (typical)
Size & build
Form factor2.5 in, 7 mm thickness
Overall height7.0 mm
Overall width69.9 mm
Product depth100.0 mm
Product weight41g
In the box
Included items1 × Kingston A400 2.5 in SATA SSD
User Manual
Environment & compliance
Max shock tolerance1500G (0.5 ms half-sine)
Vibration tolerance2.17G (operating, 7-800 Hz)

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Questions about this item

What does the 500MB/s read figure mean when the drive is installed in a laptop?

It is the maximum sequential read speed the drive can reach over the SATA III link; real-world boot and file-load times will be lower because the interface caps sustained throughput at 6Gb/s.

How does the SATA III 6Gb/s interface limit actual transfer rates?

The 6Gb/s bus tops out around 500MB/s, so the drive's rated 500MB/s read and 350MB/s write are already at the interface ceiling.

Will the 7mm 2.5-inch form factor fit my notebook's drive bay?

Yes, the drive is a standard 2.5-inch 7mm SATA SSD and uses the usual 7-pin data plus 15-pin power connectors found in most laptops and desktops.

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