Lenovo ThinkSystem SR665 V3
The ThinkSystem SR665 V3 is Lenovo's flagship high-density dual-socket 2U AMD server, powered by AMD EPYC 9004 and 9005 Series processors with up to 160 cores per socket. Purpose-built for massive virtualization consolidation, software-defined storage, AI model fine-tuning, and high-performance computing, it combines extreme core counts with native PCIe Gen5 throughput and DDR5 memory channels. The chassis accommodates up to 32 direct-connect NVMe Gen5 drives and multiple high-power accelerator GPUs. When acquiring second-hand units, buyers should verify the installed heatsink type (heavy-duty copper or liquid-assisted heatsinks are required for 300W+ EPYC CPUs), check XCC2 licensing, and ensure PSU capacities match dual-processor peak consumption.
Also written as: ThinkSystem SR665 V3, SR665V3, 7D9A, 7D9B
Specifications
| Brand | Lenovo |
|---|---|
| Family | ThinkSystem SR |
| Form factor | 2U rack |
| Released | Nov 2022 |
| Cpu sockets | 2 |
| Cpu platform | Dual AMD EPYC 9004 Series (Genoa/Bergamo) and 9005 Series (Turin) processors up to 400W TDP |
| Memory slots | 24 |
| Memory type | DDR5-4800 / DDR5-5200 / DDR5-6000 RDIMM / 3DS RDIMM |
| Memory max (GB) | 6,144 |
| Drive bays | Up to 40x 2.5-inch SFF, 20x 3.5-inch LFF, or up to 32x NVMe PCIe Gen5 SSDs; EDSFF E3.S options |
| Pcie slots | Up to 12 PCIe Gen5 slots plus 2 OCP 3.0 slots |
| Gpu support | Up to 3 double-wide 350W GPUs or 8 single-wide GPUs |
| Network onboard | Dual OCP 3.0 Gen5 slots plus dedicated 1GbE XClarity management port |
| Power supply | Dual redundant 750W / 1100W / 1800W / 2400W / 2600W AC 80 PLUS Titanium or Platinum PSUs |
Reference prices (last 14 days, updated 2026-10-27)
New: USD 7,450 (1 sighting, Oct 2026)
Used: USD 5,200 (1 sighting, Oct 2026)
All sightings
| Seller | Condition | Price | Note | Seen |
|---|---|---|---|---|
| cdw.com | new | USD 7,450 | Base chassis with 1x AMD EPYC 9124, 32GB DDR5, 8-bay SFF, 1100W PSU | 2026-10-27 |
| ebay.com | used | USD 5,200 | 2x AMD EPYC 9354 32-core, 128GB DDR5, 8x NVMe bays, dual 1800W PSUs | 2026-10-27 |
Prices seen on public listings on the dates shown, before tax and shipping. Not an offer.
Compatible parts
RAID controllers
- 05-50085-00 Broadcom MegaRAID 9660-16i 8GB Cache PCIe 5.0 Tri-Mode 24G SAS/SATA/NVMe RAID Controller
Network adapters
- BCM957504A5041CC Broadcom NetXtreme-E BCM57504 Quad-Port 100GbE QSFP56 PCIe 4.0 Ethernet Network Adapter
- 4XC7A08238 ThinkSystem Broadcom 57414 10/25GbE SFP28 2-Port PCIe Ethernet Adapter
- 4XC7A08248 Lenovo ThinkSystem Mellanox ConnectX-6 Dx 100GbE QSFP56 2-Port PCIe Ethernet Adapter
- 4XC7A08295 ThinkSystem Intel E810-DA2 10/25GbE SFP28 2-Port PCIe Ethernet Adapter
- MCX75310AAS-NEAT NVIDIA ConnectX-7 Single-Port 400Gb/s NDR InfiniBand and 400GbE OSFP PCIe 5.0 x16 Adapter
- MCX755106AS-HEAT NVIDIA ConnectX-7 Dual-Port 200Gb/s NDR200 InfiniBand and 200GbE QSFP112 PCIe 5.0 x16 Adapter
SSDs
- KCMYXRUG1T92 Kioxia CM7-R 1.92TB PCIe Gen5 NVMe U.3 2.5-Inch Read-Intensive Enterprise SSD
- KCMYXRUG3T84 Kioxia CM7-R 3.84TB PCIe Gen5 NVMe U.3 2.5-Inch Read-Intensive Enterprise SSD
- 4XB7A17063 ThinkSystem 2.5" PM893 3.84TB Read Intensive SATA 6Gb HS SSD
- 4XB7A17128 ThinkSystem 2.5" S4620 3.84TB Mixed Use SATA 6Gb HS SSD
- MTFDKCC7T6TGH-1BC1ZABYY Micron 9400 PRO 7.68TB PCIe Gen4 NVMe U.3 2.5-Inch Enterprise SSD
- MZ-QL21T900 Samsung PM9A3 1.92TB PCIe Gen4 NVMe U.3 2.5-Inch Enterprise Solid State Drive
- MZ-QL23T800 Samsung PM9A3 3.84TB PCIe Gen4 NVMe U.3 2.5-Inch Enterprise Solid State Drive
- MZ-QL27T600 Samsung PM9A3 7.68TB PCIe Gen4 NVMe U.3 2.5-Inch Enterprise Solid State Drive
- HFS3T8GDK5AX-A530A SK hynix PE9010 3.84TB PCIe Gen5 NVMe E3.S 1T Data Center Solid State Drive
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
- MTC20F1045S1RC48BA1 Micron 32GB DDR5-4800MHz PC5-38400 ECC Registered CL40 1Rx4 RDIMM Server Memory
- MTC40F2046S1RC48BA1 Micron 64GB DDR5-4800MHz PC5-38400 ECC Registered CL40 2Rx4 RDIMM Server Memory
- M321R4GA3BB0-CQK Samsung 32GB DDR5-4800MHz PC5-38400 ECC Registered CL40 1Rx4 RDIMM Server Memory
- M321R8GA0BB0-CQK Samsung 64GB DDR5-4800MHz PC5-38400 ECC Registered CL40 2Rx4 RDIMM Server Memory
- HMCG88MEBRA113N SK hynix 32GB DDR5-4800MHz PC5-38400 ECC Registered CL40 1Rx4 RDIMM Server Memory
- HMCG94AGBRA181N SK hynix 64GB DDR5-5600MHz PC5-44800 ECC Registered CL46 2Rx4 RDIMM Server Memory
- HMCG94MEBRA121N SK hynix 64GB DDR5-4800MHz PC5-38400 ECC Registered CL40 2Rx4 RDIMM Server Memory
Hard drives
- 4XB7A13911 ThinkSystem 3.5" 14TB 7.2K SAS 12Gb Hot Swap 512e HDD
- 4XB7A13914 Lenovo ThinkSystem 3.5" 18TB 7.2K SAS 12Gb HS 512e HDD
- 4XB7A80353 Lenovo ThinkSystem 3.5" 20TB 7.2K SAS 12Gb HS 512e HDD
HBAs
- 4Y37A09724 Lenovo ThinkSystem 440-16e SAS/SATA PCIe Gen4 12Gb HBA
- 7Y37A01091 ThinkSystem 430-16e SAS/SATA 12Gb HBA
Equivalent models from other brands
- Dell Poweredge R7625
- HPE ProLiant DL385 Gen11 · compare
- Supermicro As 2125HS Tnr
Buying a used SR665 V3: what to check
Confirm CPU heatsink rating for high-TDP EPYC processors (360W-400W models require performance heatsinks), verify XCC2 Platinum management license, inspect PCIe Gen5 riser cards and cabling, and ensure dual 1800W+ power supplies are included for multi-GPU builds.
FAQ
What processors are supported in the SR665 V3?
It supports 4th Gen AMD EPYC 9004 (Genoa, Bergamo, Genoa-X) and 5th Gen AMD EPYC 9005 (Turin) processors up to 160 cores per socket.
How many PCIe Gen5 slots are available on the SR665 V3?
The system provides up to 12 PCIe Gen5 expansion slots in addition to dual OCP 3.0 network slots.
Does the SR665 V3 support direct-attach NVMe Gen5 SSDs?
Yes, it supports up to 32 direct-attach NVMe PCIe Gen5 solid-state drives without requiring PCIe switches.
Buying or selling SR665 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 SR665 V3 Server Product Guide, checked 2026-10-27