4XB7A80353: lenovo ThinkSystem 3.5" 20TB 7.2K SAS 12Gb HS 512e HDD
Also listed as: 4XB7A80353-01, 03GX045, SP47A80353, BN2Q, ST20000NM003D, WUH722020AL5204
20TB enterprise-capacity 3.5-inch 7,200 RPM SAS 12Gb/s hot-swap helium hard drive delivering maximum storage density for ThinkSystem servers.
Specifications
| Part number | 4XB7A80353 |
|---|---|
| Brand | lenovo |
| Type | Hard drives |
| Other numbers | 4XB7A80353-01, 03GX045, SP47A80353, BN2Q, ST20000NM003D, WUH722020AL5204 |
| Capacity (GB) | 20,000 |
| Form factor | 3.5" Hot-Swap |
| Interface | SAS 12Gb/s |
| Rotational speed rpm | 7,200 |
| Sector format | 512e |
About the 4XB7A80353
The Lenovo 4XB7A80353 is a massive 20TB 3.5-inch hot-swap SAS 12Gb/s hard drive designed for hyper-dense storage servers. Leveraging conventional magnetic recording (CMR) inside a helium-sealed enclosure spinning at 7,200 RPM, it delivers peak storage density for software-defined object stores, Ceph clusters, Veeam backup targets, and unstructured big data pools on ThinkSystem platforms.
Compatibility
Compatible with Lenovo ThinkSystem SR650 V2, SR650 V3, SR665 V3, and ST650 V2/V3 systems configured with 3.5-inch SAS drive backplanes. Operates across 12Gb SAS RAID adapters and host bus adapters. It cannot be used with SATA backplanes or controllers and requires a host OS supporting 512e sector formatting.
How to identify a genuine unit
The drive caddy carries a Lenovo 20TB SAS 12Gb 7.2K designation. The top label displays Lenovo option part number 4XB7A80353, FRU code 03GX045, and feature code BN2Q. Underlying OEM drive mechanisms include Seagate ST20000NM003D or WD Ultrastar WUH722020AL5204 running Lenovo customized microcode.
Buying used
When acquiring pre-owned 20TB hard drives, verify helium pressure sensor status in SMART attributes to ensure seal integrity. Review grown defect counts and ensure that read and write background scans report zero errors. Ensure the drive is shipped with the official Lenovo 3.5-inch drive tray and proper mounting screws.
Reference prices (last 12 months, updated 2026-10-21)
New: USD 420 (1 sighting, Oct 2026)
Refurbished: USD 315 (1 sighting, Oct 2026)
All sightings
| Seller | Condition | Price | Note | Seen |
|---|---|---|---|---|
| ServerMonkey | refurbished | USD 315 | Tested clean working pull with 3.5" tray | 2026-10-21 |
| Provantage | new | USD 420 | Factory sealed Lenovo option kit in tray | 2026-10-07 |
Prices seen on public listings on the dates shown, before tax and shipping. Not an offer.
Fits these models
- Lenovo ThinkSystem SR650 V2
- Lenovo ThinkSystem SR650 V3
- Lenovo ThinkSystem SR665 V3
- Lenovo ThinkSystem ST650 V2
- Lenovo ThinkSystem ST650 V3
Buying or selling 4XB7A80353?
New, refurbished or used. Tell us the quantity and condition and we connect you with a vetted reseller in your region, usually within one working day.
Sources
- Lenovo Technical Reference - 4XB7A80353, checked 2026-10-27
- Lenovo Technical Reference - 4XB7A80353, checked 2026-10-27