Kingston A400
Score: 71/100
Seagate Storage Expansion Card 1TB
Score: 69/100Rankings
The Kingston A400 240 GB SSD is a budget-friendly 2.5-inch SATA drive offering up to 500 MB/s read speed and very low power draw. Its write speed caps at 350 MB/s and endurance is limited to 80 TB TBW. Ideal for users upgrading older laptops or desktops who need a cost-effective OS drive.
The Seagate Storage Expansion Card for Xbox Series X|S adds up to 4 TB of native-speed storage via a PCIe Gen4 x4 NVMe interface. Its performance is slightly lower than the theoretical maximum and it works only with the Xbox Series X|S ecosystem. Best for gamers who need seamless expansion without cables.
| Attribute | | |
|---|---|---|
240 GB | 1,024 GBbest | |
500 MB/s | 820 MB/sbest | |
350 MB/s | 664 MB/sbest | |
— | 30,219 IOPSbest | |
— | 684 IOPSbest | |
80 TBbest | — | |
— | 128 MBbest | |
| ↓ lower better | 0.279 Wbest | — |
Click an attribute name to sort · Green = best, red = worst (relative to this comparison)
| Attribute | | |
|---|---|---|
Connectivity(1) | ||
Interface | SATA III | PCIe Gen4 x4 NVMe |
Performance(2) | ||
Sequential Read Speed (MB/s) | 500 MB/s | 820 MB/s |
Sequential Write Speed (MB/s) | 350 MB/s | 664 MB/s |
Storage(1) | ||
Storage Capacity (GB) | 240 GB | 1024 GB |
Reliability(1) | ||
Operating Temperature (°C) | 0-70 °C | 5-35 °C |
Design & Build(3) | ||
Form Factor | 2.5 inch | Proprietary Card |
Weight (g) | 41 g | 30 g |
Dimensions (L×W×H) (mm) | 7.1 x 69.9 x 100.1 mm mm | 80x23.4x8.9 mm |
Products in the top-left offer the best value (high score, low price).
Professional reviewers and editors praise the Kingston A400 240GB for its impressive speed uplift over mechanical drives, rugged build quality, and excellent value at a low price. However, they caution that its write speed ceiling, modest 80 TB TBW endurance, and inconsistent MTBF figures make it less suitable for heavy-write or enterprise scenarios.
Everyday users overwhelmingly appreciate the noticeable boost in boot times, quieter operation, and straightforward installation, often describing the drive as feeling truly ten times faster than their old HDDs.
“Matches internal SSD speeds for optimized games, Quick Resume, and load times, delivering near-native performance.”
“Benchmark read speeds (~738 MB/s) are lower than the theoretical maximum of PCIe Gen4, potentially limiting peak performance.”
Professional reviewers praise the Seagate Expansion Card as the only true plug-and-play solution that delivers PCIe Gen4 performance and full Xbox Velocity Architecture integration, matching the console's internal SSD for optimized games. They commend its seamless installation, high capacities, and ability to run next-gen titles without transfers, while noting that real-world speeds fall short of the PCIe Gen4 ceiling and that the product's exclusivity and premium price limit its broader appeal.
Everyday users consistently highlight the card's ease of installation and the immediate boost in available storage, especially for large open-world games. Quick Resume reliability and the compact, cable-free form factor receive strong praise. Recurring concerns revolve around limited capacity on lower-tier models, the inability to use the card on other platforms, and occasional heat during prolonged sessions.
