Seagate Storage Expansion Card 1TB
Score: 69/100
Samsung 870 EVO
Score: 79/100Rankings
The Samsung 870 EVO 1TB SATA SSD delivers top-tier SATA performance, a dedicated DRAM cache and strong endurance in a compact 2.5" form factor. It is limited by the SATA III interface and can see latency spikes under heavy sustained writes. Best suited for users upgrading laptops or desktops who need reliable, high-capacity SATA storage.
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 | | |
|---|---|---|
1,024 GBbest | 1 GB | |
820 MB/sbest | 560 MB/s | |
664 MB/sbest | 530 MB/s | |
30,219 IOPS | 98,000 IOPSbest | |
684 IOPS | 88,000 IOPSbest | |
— | 600 TBbest | |
— | 1,500,000 hoursbest | |
128 MB | 1,024 MBbest |
Click an attribute name to sort · Green = best, red = worst (relative to this comparison)
| Attribute | | |
|---|---|---|
Connectivity(1) | ||
Interface | PCIe Gen4 x4 NVMe | SATA III |
Performance(5) | ||
Sequential Read Speed (MB/s) | 820 MB/s | 560 MB/s |
Sequential Write Speed (MB/s) | 664 MB/s | 530 MB/s |
Random Read IOPS (4K) (IOPS) | 30219 IOPS | 98000 IOPS |
Random Write IOPS (4K) (IOPS) | 684 IOPS | 88000 IOPS |
DRAM Cache (MB) | 128 MB | 1024 MB |
Storage(1) | ||
Storage Capacity (GB) | 1024 GB | 1 GB |
Reliability(1) | ||
Operating Temperature (°C) | 5-35 °C | -40-85 °C |
Design & Build(3) | ||
Form Factor | Proprietary Card | 2.5-inch |
Weight (g) | 30 g | 86 g |
Dimensions (L×W×H) (mm) | 80x23.4x8.9 mm | 100.08x70.10x6.86 mm |
Products in the top-left offer the best value (high score, low price).
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.
“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.”
“fastest SATA SSD yet”
Reviewers consistently describe the 870 EVO as the pinnacle of SATA SSD performance, applauding its ability to hit the full 560/530 MB/s sequential ratings and its markedly improved QD1 random reads. They also commend its endurance and the inclusion of DRAM, while noting that the drive remains bound by SATA's bandwidth ceiling and offers few architectural leaps over the 860 EVO.
Consumers love the noticeable boost in boot speed, the silent operation, and the ease of use provided by Samsung Magician. The most common complaints revolve around occasional compatibility tweaks on older hardware, the lack of flashy pricing incentives, and the perception that the performance gains are modest compared to a jump to NVMe.
