Refurbished Lenovo ThinkSystem SR635 1U Rack Server
1U · Lenovo ThinkSystem SR635. Professionally refurbished, QC-graded. Sourced across China, QC-audited in our Shenzhen warehouse. Available new or refurbished — request a quote.
Configuration
| CPU Sockets | 1 |
| CPU Family | AMD EPYC 7002 (Rome) / 7003 (Milan), up to 64 cores, 280W TDP |
| Chipset | AMD SoC |
| Max RAM | 2 TB (16 DIMMs) |
| DIMM Slots | 16 TruDDR4 (8 channels, 2 DPC) |
| Memory Type | TruDDR4 RDIMM/3DS RDIMM, up to 3200 MHz (1 DPC) / 2933 MHz (2 DPC) |
| Drive Bays | Up to 16 x 2.5" hot-swap SAS/SATA/NVMe, or 4 x 3.5" hot-swap SAS/SATA; plus 2 x 2.5" rear |
| Storage Controller | Onboard SATA (12 drives, no RAID); optional RAID 530-8i/540-8i/730-8i/930-8i/16i/940-8i/16i, HBA 430-8i/16i/440-8i/16i |
| Network | OCP 3.0 SFF slot (PCIe 4.0 x16), 1/10/25 GbE adapters; PCIe slots for 1/10/25/100 GbE, InfiniBand |
| PSU | Up to 2x redundant hot-swap: 550W/750W/1100W/1600W AC 80 PLUS Platinum/Titanium; 1100W -48V DC |
| Form Factor | 1U rack-mount |
| Management | ASPEED AST2500 BMC, IPMI 2.0, Redfish, SNMP v3, Lenovo XClarity Administrator/Provisioning Manager |
| Dimensions | 440 x 43 x 755 mm (W x H x D) |
| Weight | Up to 19.2 kg |
| GPU Support | Up to 3 single-width GPUs (≤75W): NVIDIA T4, A2, Quadro P620 |
| Cooling | 7 dual-rotor hot-swap fans (N+1 redundant) |
| PCIe Slots | Up to 4 PCIe 4.0 (3 rear, 1 internal) + dedicated OCP 3.0 |
| Operating Environment | ASHRAE A2 (10-35°C) |
Overview
The original SR635 was Lenovo's opening argument for single-socket AMD in a compact rack chassis, and the argument held: fleets bought it, ran it hard, and are now releasing it in numbers. As refurbished stock it is the budget version of a still-current idea. Its successors refined the formula without invalidating it, so the original keeps its usefulness. Every unit passes the Shenzhen process — power, configuration match, complete physical review, photographs, serial history on file. It carries 1-yr hardwaresys RTB. For dev clusters, edge rooms and second-tier production, the price-for-capability is difficult to beat. Send the intended roles and request a quote. Quantity pricing applies from modest counts.
Need accessories?
RAM, drives, cables, rails — we source everything that goes into the rack.
Every unit is QC-inspected
Standard included on every order. Engineering and Expert available on request.
See QC levels →How we work
Consult & scope
We read your spec, advise on models, budget and timeline.
Spec & price
Our engineer fixes the build; the buyer prices it from vendors.
Contract
Quote, terms and documents — the rate is held, not floating.
Build & QC
Vendor build, then your chosen QC tier with a documented report.
Logistics & customs
Packing, then air from Shenzhen / Hong Kong · delivery quoted per shipment.
Delivery
Final inspection and door-to-door handover.
Common problems when buying rack servers
"In stock" that isn't
We quote real availability — In Shenzhen — ready, or build-to-order with a date — never a stock status we can't hold.
Grey-market boxes with no history
Every unit is QC-tested with a documented report; you see the checks before it ships.
Refurb that's really e-waste
Grade A refurbished only, same one-year warranty as new — or we tell you to buy new instead.
Live price — LENOVO-THINKSYSTEM-SR635-REFURB
Optics and enterprise-hardware pricing moves with the market daily, so we don't publish a static number that would be wrong by tomorrow. Send the part number and quantity and you'll have today's real rate — usually within 48 hours, Gulf business time (UTC+4).