Lenovo ThinkSystem ST650 V3
The ThinkSystem ST650 V3 is Lenovo's current-generation 4U tower and rack-convertible enterprise server designed for 4th and 5th Generation Intel Xeon Scalable processors (Sapphire Rapids and Emerald Rapids). Delivering PCIe Gen5 throughput, high-speed DDR5 memory architecture up to 5600MHz, and support for up to 4 double-wide 300W GPU accelerators alongside 32 SFF or 16 LFF storage drives, it provides workstation-class compute and massive storage for edge AI, distributed retail, remote hospitals, and corporate branch offices. Whisper-quiet acoustic baffles ensure comfortable deployment in shared workspaces. Prospective buyers in the second-hand market should confirm whether tower stabilizer feet or rack slide rails are included, check XCC2 licensing, and verify PSU wattage.
Also written as: ThinkSystem ST650 V3, ST650V3, 7D7B, 7D7A
Specifications
| Brand | Lenovo |
|---|---|
| Family | ThinkSystem ST |
| Form factor | tower |
| Released | Jan 2023 |
| Cpu sockets | 2 |
| Cpu platform | Dual 4th Gen Intel Xeon Scalable (Sapphire Rapids) and 5th Gen (Emerald Rapids) processors up to 250W TDP |
| Memory slots | 32 |
| Memory type | DDR5-4800 / DDR5-5600 RDIMM / 3DS RDIMM |
| Memory max (GB) | 4,096 |
| Drive bays | Up to 32x 2.5-inch SFF, 16x 3.5-inch LFF, or up to 16x NVMe PCIe Gen5 SSD bays |
| Pcie slots | Up to 9 PCIe Gen5 slots plus 1 OCP 3.0 slot |
| Gpu support | Up to 4 double-wide 300W GPUs or 8 single-wide 75W GPUs |
| Network onboard | Dual integrated 10GBASE-T ports plus dedicated 1GbE XClarity management port and OCP 3.0 slot |
| Power supply | Dual redundant 750W / 1100W / 1800W / 2400W AC 80 PLUS Titanium or Platinum hot-swap PSUs |
Generations
- Previous generation: Lenovo ThinkSystem ST650 V2
Reference prices (last 14 days, updated 2026-10-27)
New: USD 6,450 (1 sighting, Oct 2026)
Used: USD 4,200 (1 sighting, Oct 2026)
All sightings
| Seller | Condition | Price | Note | Seen |
|---|---|---|---|---|
| cdw.com | new | USD 6,450 | 1x Xeon Silver 4410Y, 32GB DDR5, 8-bay LFF chassis, 750W PSU | 2026-10-27 |
| ebay.com | used | USD 4,200 | 2x Xeon Gold 6430, 64GB DDR5, 8-bay SFF chassis, dual 1100W PSUs | 2026-10-27 |
Prices seen on public listings on the dates shown, before tax and shipping. Not an offer.
Compatible parts
Memory
- 4X77A77495 ThinkSystem 32GB TruDDR5 4800MHz (1Rx4 1.1V) RDIMM
- 4X77A77496 ThinkSystem 64GB TruDDR5 4800MHz (2Rx4 1.1V) RDIMM
- 4X77A81435 Lenovo ThinkSystem 32GB TruDDR5 5600MHz (1Rx4) RDIMM
- 4X77A81436 Lenovo ThinkSystem 64GB TruDDR5 5600MHz (2Rx4) RDIMM
Hard drives
- 4XB7A80353 Lenovo ThinkSystem 3.5" 20TB 7.2K SAS 12Gb HS 512e HDD
- 4XB7A13911 ThinkSystem 3.5" 14TB 7.2K SAS 12Gb Hot Swap 512e HDD
RAID controllers
- 4Y37A09728 ThinkSystem RAID 940-8i 4GB Flash PCIe Gen4 12Gb Adapter
SSDs
- 4XB7A17128 ThinkSystem 2.5" S4620 3.84TB Mixed Use SATA 6Gb HS SSD
Equivalent models from other brands
- Dell Poweredge T560
- HPE ProLiant ML350 Gen11 · compare
Buying a used ST650 V3: what to check
Confirm chassis configuration (pedestal feet for tower setup vs slide rail kit for 4U rack mounting), inspect GPU auxiliary power cables and performance fan cages, check XCC2 licensing, and verify dual 1800W+ power supplies are included for multi-GPU setups.
FAQ
What processors run in the ST650 V3?
It supports 4th Gen and 5th Gen Intel Xeon Scalable processors up to 32 cores per socket and 250W TDP.
What memory type does the ST650 V3 require?
It uses DDR5 RDIMM memory running at 4800 MT/s with 4th Gen CPUs or 5600 MT/s with 5th Gen CPUs.
Can the ST650 V3 be rack-mounted?
Yes, using the Lenovo ThinkSystem 4U Tower-to-Rack conversion kit, it installs into standard 19-inch server racks.
Buying or selling ST650 V3?
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 ThinkSystem ST650 V3 Server Product Guide, checked 2026-10-27