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- Description
- Specifications
4XB7A17128 (feature code BK7L) is the ThinkSystem 2.5" S4620 3.84TB Mixed Use SATA 6Gb HS SSD. The S4620 pairs Intel 3D NAND TLC flash with Intel controller technology and offers better endurance than the Intel S4610 series it succeeds. This 3.84TB drive has no SED encryption.
The 3.84TB capacity reaches 91,000 random read IOPS and 60,000 random write IOPS with 4 KB blocks, plus 550 MBps sequential read and 510 MBps sequential write with 128 KB blocks. Sequential latency is 36 µs for reads and 38 µs for writes, and random latency is 104 µs for reads and 45 µs for writes. Typical active-write power is 3.9 W.
Endurance is 5.0 drive writes per day, with 35.1 PB total bytes written, the highest of the four S4620 capacities, and an MTBF of 2,000,000 hours. Data reliability is better than 1 uncorrectable error in 10^17 bits read. The S4620 suits use as cache in transactional applications and as high-speed storage for enterprise databases.
The drive is 7 mm high, 70 mm wide and 100 mm deep and weighs under 70 g without its tray. Smaller capacities of the 2.5-inch S4620 are 480GB (4XB7A17125), 960GB (4XB7A17126) and 1.92TB, for which see the ThinkSystem 2.5" S4620 1.92TB, 4XB7A17127. Browse more Lenovo SSDs.
| Option part number | 4XB7A17128 |
| Feature code | BK7L |
| Capacity | 3.84TB |
| Interface | 6 Gbps SATA |
| Form factor | 2.5-inch, 7 mm hot-swap |
| Class | Mixed Use |
| SED encryption | None |
| Endurance | 5.0 DWPD, 35.1 PB written |
| 4 KB random IOPS | 91,000 read / 60,000 write |
| Sequential throughput | 550 MBps read / 510 MBps write |
| Random latency | 104 µs read / 45 µs write |
| Typical power (active write) | 3.9 W |
| MTBF | 2,000,000 hours |
| Weight | under 70 g |