Dell PowerEdge R640
Dual 1st/2nd Gen Intel Xeon Scalable · 24 DDR4 DIMM slots · 10× 2.5" SAS/SATA/NVMe — the dense 1U sibling of the R740, fully tested and shipped worldwide from Hong Kong.
Fully Tested & Documented · Hong Kong Warehouse Stock · Worldwide Shipping 3–7 Days · 1-Year Warranty
Hardware Gallery
The R640, Up Close
Front — 10× SFF Drive Bays
Up to 10× 2.5" SAS/SATA/NVMe bays in 1U, with status LCD and iDRAC Quick Sync 2. The NVMe backplane variant is the one to ask for on flash-heavy workloads.
Rear — Compact Expansion
Dual hot-plug PSUs, PCIe Gen3 riser slots, NDC networking bay for 1/10/25GbE, and dedicated iDRAC9 management port — full enterprise I/O despite the 1U footprint.
56
cores max — 2× 2nd Gen Xeon Scalable
24
DDR4-2933 DIMM slots, up to 3TB+
10×
2.5" front bays, NVMe-ready
1U
half the rack space of the R740
Key Specifications
| Component | Specification |
|---|---|
| Form factor | 1U rack |
| Processors | 2× 1st/2nd Gen Intel Xeon Scalable (Skylake/Cascade Lake), up to 28 cores each |
| Memory | 24× DDR4 DIMM slots, up to 3TB RDIMM/LRDIMM, 2933 MT/s |
| Storage | Up to 10× 2.5" SAS/SATA/NVMe front bays |
| Expansion | Up to 3× PCIe Gen3 slots |
| Networking | NDC/LOM options + PCIe NICs, 1/10/25GbE |
| Management | iDRAC9 Enterprise |
| Power | Redundant PSUs, 495W–1100W options |
Same platform as the PowerEdge R740 in half the rack space — pick the R640 when density matters and drive count stays under ten, the R740 when you need bays and PCIe headroom.
Transparent Pricing
2026 Reference Pricing by Configuration
We have not published a price index snapshot for the R640 yet — refurbished 1U stock rotates fast, so we quote against live inventory instead of showing stale numbers.
Bare Chassis
On Request
Chassis + motherboard + redundant PSUs. Tell us the backplane variant you need (SAS/SATA vs NVMe) and we confirm stock.
Sweet-Spot Config
On Request
Dual Xeon Silver/Gold, 128–256GB RAM, boot drives — the configuration most buyers ask for. Typically 15–25% below equivalent R740 pricing.
High Spec
On Request
512GB+ RAM or full NVMe builds assembled to order from chassis stock — usually 3–5 working days to configure, test, and ship.
Cross-shop with the R740 price index and our Used Server Price Index for market context.
Origin
Hong Kong Warehouse
Free port — full export documentation
Transit
3–7 Days Air Freight
Tracked, insured, worldwide
Warranty
1-Year Warranty
Diagnostic report in every box
Quality Process
What We Test Before an R640 Ships
iDRAC Lifecycle Logs
Power-on hours, thermal history, and recorded hardware faults tell us how the server actually lived.
Full Memory Diagnostics
Every populated DIMM tested, and all 24 slots verified — slot failures are a known repair cost on heavily used boards.
Backplane & Drive Health
SMART data on all included drives; NVMe vs SAS/SATA backplane variant confirmed.
Firmware Currency
iDRAC, BIOS, and backplane firmware updated to supported versions before shipment.
Physical Inspection
PCIe riser latches, fan modules, and PSU handles — the parts most commonly damaged during de-racking.
Report in the Box
Every unit ships with its per-machine diagnostic report and warranty. Full process: inspection guide.
Frequently Asked Questions
How much does a refurbished Dell PowerEdge R640 cost in 2026?
We have not published an index snapshot for the R640 yet — 1U stock rotates fast, so we quote against live inventory. Equivalent configurations typically run 15–25% below R740 pricing. Contact us for a firm quote.
What is the difference between the R640 and the R740?
Same CPU and memory platform — the difference is chassis. The R640 is 1U with 10 drive bays and 3 PCIe slots; the R740 is 2U with up to 16 bays and 8 slots. Choose R640 for density, R740 for storage and expansion.
Should I buy an R640 or a newer R650?
The R650 adds 3rd Gen Xeon Scalable and PCIe Gen4 — roughly 25–40% more performance. The R640 costs significantly less and shares the mature 14th-gen parts ecosystem. For budget density builds, R640; for per-core performance, R650.
What condition are HKCHL refurbished R640 servers in?
Every unit passes documented per-unit diagnostics — iDRAC logs, full memory testing across all 24 slots, drive SMART verification, firmware updates, and physical inspection — and ships with the report and warranty.
Can you ship to the US, Europe, or the Middle East?
Yes. We ship worldwide from our Hong Kong warehouse with full export documentation; typical air-freight transit is 3–7 days to major markets.
Get a Current R640 Quote
Tell us your target workload — virtualization, web serving, edge compute — and we will reply with availability and pricing, usually within one business day.
Request a Quote