Kingston SSDNow A400 240GB 2.5" SATA III SSD SA400S37/240G
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240GB 2.5-inch SATA SSD for desktop and notebook upgrades
Kingston A400 240GB SA400S37/240G 2.5-inch SATA SSD
The Kingston A400 240GB SA400S37/240G is a 7mm SATA Rev. 3.0 SSD rated up to 500MB/s read and 350MB/s write, with 80TBW endurance and a limited three-year warranty for supported desktop and notebook workloads.
- 240GB capacity
- 500/350MB/s read/write
- SATA 6Gb/s
- 2.5-inch 7mm
- 80TBW endurance
- 3-year limited warranty
| Capacity |
240GB |
| Performance |
Up to 500MB/s read; 350MB/s write |
| Interface |
SATA Rev. 3.0 (6Gb/s) |
| Form factor |
2.5-inch, 7mm |
A practical 240GB SATA upgrade for everyday systems
The Kingston A400 240GB SA400S37/240G replaces a compatible 2.5-inch hard drive or smaller SATA SSD with solid-state storage for faster start-up, loading and file transfers. Kingston specifies 3D NAND, shock and vibration resistance, and client desktop/notebook use rather than server workloads.
Up to 500MB/s read
The current official capacity profile is rated up to 500MB/s read using Kingston's baseline ATTO test.
Up to 350MB/s write
This 240GB model has a capacity-specific write rating of up to 350MB/s.
SATA compatibility
SATA Rev. 3.0 provides a 6Gb/s interface and is backwards compatible with SATA Rev. 2.0.
Slim 7mm design
The 100 × 69.9 × 7mm 2.5-inch format fits compatible desktop and notebook drive bays.
80TBW endurance
Kingston specifies 80TBW Total Bytes Written for this exact capacity.
Three-year warranty
Coverage is limited to three years or the SSD Life Remaining threshold, subject to Kingston's warranty terms.
Who is the Kingston A400 240GB SA400S37/240G best for?
A strong choice for
- Compatible desktop SATA upgrades
- Compatible notebooks with a 2.5-inch 7mm bay
- Replacing a mechanical boot drive
- Everyday applications and file storage
- Users needing 240GB nominal capacity
Consider another model if you need
- You require an M.2 or NVMe drive
- You need server or data-centre workload support
- Your system does not provide a compatible SATA data and power connection
- You require endurance above the published 80TBW rating
Key specifications
| Official part number |
SA400S37/240G |
| Capacity |
240GB |
| Form factor |
2.5-inch, 7mm |
| Interface |
SATA Rev. 3.0 (6Gb/s) |
| SATA backwards compatibility |
SATA Rev. 2.0 (3Gb/s) |
| NAND |
3D NAND |
| Sequential read |
Up to 500MB/s |
| Sequential write |
Up to 350MB/s |
| Endurance |
80TBW |
| MTBF |
2,000,000 hours |
| Dimensions |
100 × 69.9 × 7mm |
| Weight |
41g |
| Warranty |
Limited three-year |
Full technical specifications
Capacity, interface and performance
| Series |
Kingston A400 SATA SSD |
| Official part number |
SA400S37/240G |
| Capacity |
240GB |
| Form factor |
2.5-inch |
| Drive height |
7mm |
| Interface |
SATA Rev. 3.0 (6Gb/s) |
| Backwards compatibility |
SATA Rev. 2.0 (3Gb/s) |
| NAND |
3D NAND |
| Baseline test |
ATTO |
| Sequential read |
Up to 500MB/s |
| Sequential write |
Up to 350MB/s |
Power, reliability and endurance
| Idle power |
0.195 W |
| Average power |
0.279 W |
| Maximum read power |
0.642 W |
| Maximum write power |
1.535 W |
| Operating temperature |
0°C to 70°C |
| Storage temperature |
-40°C to 85°C |
| Operating vibration |
2.17G peak, 7–800Hz |
| Non-operating vibration |
20G peak, 10–2,000Hz |
| Life expectancy |
2,000,000 hours MTBF |
| Endurance |
80TBW |
Physical details and support
| Dimensions |
100 × 69.9 × 7mm |
| Weight |
41g |
| Intended workloads |
Desktop and notebook computers |
| Server use |
Not intended for server environments |
| Warranty/support |
Limited three-year warranty with technical support |
| Warranty basis |
Three years or SSD Life Remaining |
| Nominal capacity note |
Available capacity is lower after formatting and device functions |
Frequently asked questions about the Kingston A400 240GB SA400S37/240G
What is the Kingston A400 240GB SA400S37/240G?
It is a 240GB 2.5-inch 7mm SATA SSD designed for compatible desktop and notebook workloads.
What speed does the SA400S37/240G provide?
Kingston rates it up to 500MB/s read and 350MB/s write; actual results depend on host hardware, software and use.
What interface does the SA400S37/240G use?
It uses SATA Rev. 3.0 at 6Gb/s and is backwards compatible with SATA Rev. 2.0 at 3Gb/s.
Will the SA400S37/240G fit my computer?
It requires a compatible 2.5-inch 7mm drive bay plus SATA data and power connections; check the system manual.
What NAND does the SA400S37/240G use?
Kingston's current official datasheet specifies 3D NAND.
What endurance applies to the SA400S37/240G?
Kingston rates this 240GB capacity for 80TBW Total Bytes Written.
What is the MTBF of the SA400S37/240G?
The current Kingston datasheet specifies a life expectancy of 2,000,000 hours MTBF.
Can the SA400S37/240G be used in a server?
Kingston states that A400 is intended for desktop and notebook workloads, not server environments.
What are the SA400S37/240G dimensions and weight?
It measures 100 × 69.9 × 7mm and weighs 41g.
What warranty applies to the SA400S37/240G?
Kingston provides a limited three-year warranty, based on three years or SSD Life Remaining, subject to its terms.
Important information:
- Confirm the system has a compatible 2.5-inch 7mm bay and SATA connections.
- A400 is designed for desktop and notebook workloads and is not intended for server environments.
- Performance varies with host hardware, software and usage.
- Available storage is lower than the nominal capacity after formatting and device functions.
