Seagate Cheetah NS ST3400755SSProduct 400 GB 3.5" SAS internal hard drive
- SLC
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ADATA
1 TB 2.5 inch SATA enterprise SSD with 3D TLC NAND, 560/520 MB/s speeds, 85 K IOPS and 800 TBW endurance
The ADATA Ultimate SU800 is a 1TB 2.5-inch SATA solid-state drive built with 3D TLC NAND and an SM2258 controller. It delivers sequential reads up to 560 MB/s and writes up to 520 MB/s, with random performance reaching 85,000 IOPS. The drive is rated for 800 TBW and a 2,000,000-hour MTBF, making it suitable for workloads that demand sustained endurance.
Verify that your chassis has an available 2.5-inch mounting location measuring at least 100.45mm deep and 69.85mm wide. The drive stands 7.00mm tall, so confirm clearance for that height. Ensure the motherboard or controller provides a SATA III 6Gb/s connection and that a SATA power cable from the power supply reaches the mounting position. The operating temperature range is 0°C to 70°C, so airflow must keep the drive within those limits.
The aluminium housing measures 7.00mm high, 69.85mm wide and 100.45mm deep, weighing 59.5g. Standard SATA data and power connectors sit on the rear edge, allowing straightforward cable routing in tight bays. The 1500G shock rating means the drive tolerates physical bumps during transport or in mobile racks. DEVSLP support lets the drive enter a low-power state when the host system signals sleep, reducing idle power draw. Free SSD Toolbox and Migration Utility software assist with monitoring health, firmware updates and data migration.
| Brand | ADATA |
|---|---|
| Series | Ultimate SU800 |
| Model | ASU800SS-1TT-C |
| Form Factor | 2.5" |
| Capacity | 1TB |
| Memory Components | 3D TLC |
| Interface | SATA III |
| Controller | SM2258 |
| Max Sequential Read | ATTO: Up to 560 MB/s Crystal Disk Mark: Up to 550 MB/s |
| Max Sequential Write | ATTO: Up to 520 MB/s Crystal Disk Mark: Up to 500 MB/s |
| 4KB Random Read | Up to 85,000 IOPS |
| 4KB Random Write | Up to 85,000 IOPS |
| Terabytes Written (TBW) | 800TB |
| MTBF | 2,000,000 hours |
| Operating Temperature | 0°C ~ +70°C |
| Storage Temperature | -40°C ~ +85°C |
| Max Shock Resistance | 1500G/0.5ms |
| Features | 3D TLC NAND Flash SMI Controller Advanced hardware LDPC ECC Technology Intelligent SLC Caching and DRAM cache buffer DEVSLP (Device Sleep) supported High TBW for extended drive longevity Free software: SSD Toolbox and Migration Utility Supports S.M.A.R.T, TRIM Command, and NCQ |
| Height | 7.00mm |
| Width | 69.85mm |
| Depth | 100.45mm |
| Weight | 59.5g |
| Shipping weight | 0.08 kg |
| Package size | 130 × 102 × 18 mm |
The drive itself is supplied; no cables, brackets or mounting screws are included, so a SATA data cable, a SATA power connection and a 2.5" drive bay or adapter must be sourced separately.
The 1 TB model delivers 800 TBW and 85,000 IOPS random write, making it the highest-capacity option in this series for sustained write endurance.
It represents the peak ATTO benchmark speed over SATA III; real-world throughput will be lower and depends on queue depth, controller firmware and the server's own SATA implementation.
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