Kingston A400 240GB 2.5″ SATA III Internal SSD
£66.43 Inc.VAT
In stock
In stock
Features
- Series: A400
- Drive Type: Internal SATA 2.5″
- Size: 100.1 x 69.8 x 7 mm
- Total Capacity: 240GB
- Speed: 500 MB/s (Read)
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- Free Pickup from our Central London Store.
- Standard Delivery (Free): Arrives in 2–3 working days.
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Kingston A400 240GB 2.5″ SATA III Internal Solid State Drive

Ultra-Responsive Boot Times & Cost-Effective System Refresh
The Kingston A400 240GB 2.5-inch Internal Solid State Drive provides an affordable and effective way to upgrade a desktop PC or laptop from traditional mechanical storage. Solid-state technology delivers substantially faster system responsiveness, helping reduce operating system boot times while improving application launches, file access and everyday computing performance.
Using a SATA III 6 Gbit/s interface, the Kingston A400 240GB SSD delivers sequential read speeds of up to 500 MB/s and sequential write speeds of up to 350 MB/s. This level of performance makes it particularly suitable for refreshing older systems where a mechanical hard drive has become a major performance bottleneck.
Its solid-state architecture provides responsive performance for common workloads including web browsing, office applications, multitasking, software installation and everyday file transfers. Whether used as a primary operating-system drive or additional SATA storage, the A400 provides a practical balance of speed, capacity and value.


Compact 7mm Form Factor & High Operational Durability
Built around the widely supported 2.5-inch storage format, the Kingston A400 features a slim 7mm profile that makes it suitable for installation in a broad selection of compatible desktop PCs, notebooks and all-in-one systems. Its standard SATA connection also makes upgrading straightforward on systems equipped with conventional 2.5-inch SATA drive support.
Unlike traditional hard disk drives, the A400 contains no spinning platters or moving read heads. This solid-state construction enables silent operation while improving resistance to everyday shock and vibration, making the drive particularly useful in laptops and other systems that may regularly be transported or repositioned.
The drive offers non-operating vibration resistance of up to 20 G, helping provide additional physical durability when the system is switched off or being transported. Combined with its compact dimensions, the A400 provides dependable storage without adding unnecessary bulk to compatible systems.
Low Power Draw & Dependable Storage Lifespan
The Kingston A400 is engineered for efficient everyday operation, combining responsive solid-state storage with low power consumption. With idle power consumption as low as approximately 0.195 W and maximum write power of around 1.535 W, the drive can help keep power requirements and heat generation low during normal use.
A rated Mean Time Between Failures of 1,000,000 hours reflects its design for dependable long-term operation. The absence of mechanical components also reduces many of the physical wear characteristics associated with conventional hard drives, making the A400 a practical choice for everyday home, educational and office systems.
For users looking to breathe new life into an older SATA-based computer without the cost of replacing the entire system, the Kingston A400 240GB SSD offers a straightforward upgrade. Its combination of fast boot performance, low power requirements, compact dimensions and dependable solid-state construction makes it well suited to everyday computing and productivity workloads.

| Brand | Kingston Technology |
| Product Model | A400 2.5″ SATA III SSD |
| SKU / Part Number | SA400S37/240G |
| GTIN / EAN | 0740617261219 |
| Storage Capacity | 240 GB |
| SSD Form Factor | 2.5-inch (7 mm height) |
| Interface & Protocol | SATA III (6 Gbit/s) |
| Memory Type | 3D TLC NAND Flash |
| Sequential Read Speed | Up to 500 MB/s |
| Sequential Write Speed | Up to 350 MB/s |
| Protection Features | Shock Resistant, Vibration Proof |
| Mean Time Between Failures (MTBF) | 1,000,000 Hours |
| Power Consumption | Max Write: 1.535 W | Active Avg: 0.279 W | Idle: 0.195 W |
| Operating Temperature | 0°C to 70°C |
| Certifications | CE, FCC |
| Dimensions (W x D x H) | 69.8 mm x 100.1 mm x 7 mm |
| Product Weight | 41 g |
| Brand | Kingston Technology |
| Product Type | Internal Solid State Drive (SSD) |
| Warranty Period | 3 Years Limited Warranty |
| Warranty Service | Repair or Replacement |
| Weight | 0.00 kg |
|---|---|
| Manufacturer | KINGSTON |
| Storage Capacity | 240 GB |
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Customer Reviews
Description
Kingston A400 240GB 2.5″ SATA III Internal Solid State Drive

Ultra-Responsive Boot Times & Cost-Effective System Refresh
The Kingston A400 240GB 2.5-inch Internal Solid State Drive provides an affordable and effective way to upgrade a desktop PC or laptop from traditional mechanical storage. Solid-state technology delivers substantially faster system responsiveness, helping reduce operating system boot times while improving application launches, file access and everyday computing performance.
Using a SATA III 6 Gbit/s interface, the Kingston A400 240GB SSD delivers sequential read speeds of up to 500 MB/s and sequential write speeds of up to 350 MB/s. This level of performance makes it particularly suitable for refreshing older systems where a mechanical hard drive has become a major performance bottleneck.
Its solid-state architecture provides responsive performance for common workloads including web browsing, office applications, multitasking, software installation and everyday file transfers. Whether used as a primary operating-system drive or additional SATA storage, the A400 provides a practical balance of speed, capacity and value.


Compact 7mm Form Factor & High Operational Durability
Built around the widely supported 2.5-inch storage format, the Kingston A400 features a slim 7mm profile that makes it suitable for installation in a broad selection of compatible desktop PCs, notebooks and all-in-one systems. Its standard SATA connection also makes upgrading straightforward on systems equipped with conventional 2.5-inch SATA drive support.
Unlike traditional hard disk drives, the A400 contains no spinning platters or moving read heads. This solid-state construction enables silent operation while improving resistance to everyday shock and vibration, making the drive particularly useful in laptops and other systems that may regularly be transported or repositioned.
The drive offers non-operating vibration resistance of up to 20 G, helping provide additional physical durability when the system is switched off or being transported. Combined with its compact dimensions, the A400 provides dependable storage without adding unnecessary bulk to compatible systems.
Low Power Draw & Dependable Storage Lifespan
The Kingston A400 is engineered for efficient everyday operation, combining responsive solid-state storage with low power consumption. With idle power consumption as low as approximately 0.195 W and maximum write power of around 1.535 W, the drive can help keep power requirements and heat generation low during normal use.
A rated Mean Time Between Failures of 1,000,000 hours reflects its design for dependable long-term operation. The absence of mechanical components also reduces many of the physical wear characteristics associated with conventional hard drives, making the A400 a practical choice for everyday home, educational and office systems.
For users looking to breathe new life into an older SATA-based computer without the cost of replacing the entire system, the Kingston A400 240GB SSD offers a straightforward upgrade. Its combination of fast boot performance, low power requirements, compact dimensions and dependable solid-state construction makes it well suited to everyday computing and productivity workloads.

Specifications
| Brand | Kingston Technology |
| Product Model | A400 2.5″ SATA III SSD |
| SKU / Part Number | SA400S37/240G |
| GTIN / EAN | 0740617261219 |
| Storage Capacity | 240 GB |
| SSD Form Factor | 2.5-inch (7 mm height) |
| Interface & Protocol | SATA III (6 Gbit/s) |
| Memory Type | 3D TLC NAND Flash |
| Sequential Read Speed | Up to 500 MB/s |
| Sequential Write Speed | Up to 350 MB/s |
| Protection Features | Shock Resistant, Vibration Proof |
| Mean Time Between Failures (MTBF) | 1,000,000 Hours |
| Power Consumption | Max Write: 1.535 W | Active Avg: 0.279 W | Idle: 0.195 W |
| Operating Temperature | 0°C to 70°C |
| Certifications | CE, FCC |
| Dimensions (W x D x H) | 69.8 mm x 100.1 mm x 7 mm |
| Product Weight | 41 g |
Warranty
| Brand | Kingston Technology |
| Product Type | Internal Solid State Drive (SSD) |
| Warranty Period | 3 Years Limited Warranty |
| Warranty Service | Repair or Replacement |
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