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Rectangular 2.5 inch black internal SSD with label showing Kingston A400 480GB SATA III

Kingston Technology Corp.

Kingston Technology Corp. A400 480GB 2.5" SATA internal SSD SA400S37/480G

SKU CH-RBSE-SWMG7 MPN SA400S37/480G *** no use ***

A 480 GB 2.5 inch SATA solid-state drive using 3D NAND with sequential reads up to 500 MBps and writes up to 450 MBps, rated for 160 TB written and 1,000,000 hours MTBF

  • Total capacity480 GB
  • Sequential read speedUp to 500 MB/s
  • Sequential write speedUp to 450 MB/s
  • Interface typeSATA III
  • Form factor2.5 in (6.35 cm)
  • Product typeInternal Solid State Drive (SSD)
  • Faster boot and load times with up to 500 MB/s sequential read
  • Quicker file saves at up to 450 MB/s sequential write
  • 480 GB capacity stores OS, apps and media
  • 5 inch SATA form factor fits most laptops and desktops
  • Shock and vibration resistant for reliable mobile use

480GB SATA SSD for everyday computing

The Kingston A400 is a 2.5 inch internal solid state drive built with 3D NAND and a SATA III interface. It targets desktop and notebook users who want faster start-up, quicker application loading and snappier file transfers without moving to a newer platform. The drive has no DRAM cache and is rated for 160TB total bytes written with a 1,000,000 hour MTBF.

SATA III caps sequential speed at 500 MBps read

The SATA III interface limits maximum sequential throughput to 500 MBps read and 450 MBps write regardless of the NAND technology inside. Power draw stays low at 0.195W idle, 0.279W average active, 0.642W max read and 1.535W max write. Operating temperature range is 0°C to 70°C with vibration resistance of 2.17G peak while running and 20G peak when powered off.

Replaces a mechanical hard drive in 2.5 inch bays

Swapping a 2.5 inch hard drive for this SSD removes moving parts, cuts noise and delivers roughly 10x faster access for the operating system and applications. The upgrade is most worthwhile when the system uses a SATA III port and the workload fits within 480GB of capacity. Larger capacities up to 1.92TB are available in the same series if more space is needed.

How it compares

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

Price $89.99
Cheaper than about 75% of the 1,994 comparable items (median $180.49).
Total capacity 480 GB
Lower than about 71% 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 $187.48 per TB
Pricier than about 57% of the 1,362 comparable items (median $165.50 per TB).

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Specifications

Product
Brand nameKingston
Product lineA400
Model nameSA400S37/480G
Part numberSA400S37/480G
Total capacity480 GB
Product typeInternal Solid State Drive (SSD)
Intended useConsumer
Performance
Sequential read speedUp to 500 MB/s
Sequential write speedUp to 450 MB/s
Storage
NAND flash type3D NAND
Cache memory0 MB
Ports & slots
Interface typeSATA III
Power
Idle power draw0.195 W
Active power draw0.279 W Avg
0.642 W (MAX) Read
1.535 W (MAX) Write
Size & build
Form factor2.5 in (6.35 cm)
Overall height7 mm
Overall width69.9 mm
Product depth100 mm
Product weight41g
Shipping weight0.07 kg
Package size183 × 130 × 13 mm
Environment & compliance
Operating temperature range0 °C to 70 °C
Storage temperature range-40 °C to 85 °C
Vibration toleranceOperating: 2.17G Peak (7–800 Hz)
Non-operating: 20G Peak (10–2000 Hz)
More details
Mean time between failures1,000,000 h

Questions about this item

Should I choose the 480GB A400 or one of the larger capacities up to 1.92TB?

The 480GB model provides 160TB of total bytes written and up to 500 MBps read speeds; larger capacities in the same series offer more space for applications or a full hard-drive replacement while keeping the same 2.5-inch form factor.

What does the 500 MBps sequential read figure mean once the drive is installed in my laptop?

In a real machine the SATA III link caps throughput at about 500 MBps, so you will see fast start-up, quick application loading and snappy file transfers that are roughly ten times faster than a mechanical hard drive.

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

SATA III limits the maximum sequential read to 500 MBps and write to 450 MBps, so those are the practical ceiling speeds you will observe regardless of the 3D NAND inside.

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