Replacement for DRH8640-2GB: Drop-In Alternatives We Stock
Looking for a replacement for the DRH8640-2GB (Dataram DRH8640/2GB 2GB Kit (2 X 1GB) DDR2-533MHz PC2-4200 ECC Registered CL4 278-Pin DIMM Memory)? Pro Disk Network ships drop-in replacements and equivalent modern parts from US inventory. Every alternate below is in-stock today with same-day shipping for orders placed before 2pm ET. If your unit is still under warranty, contact our engineering team — we offer cross-shipping for B2B customers on Net 30 terms.
About the DRH8640-2GB
| SKU | DRH8640-2GB |
|---|---|
| Product | Dataram DRH8640/2GB 2GB Kit (2 X 1GB) DDR2-533MHz PC2-4200 ECC Registered CL4 278-Pin DIMM Memory |
| Current price | $206.04 |
| Stock status | In Stock |
| Detail page | View DRH8640-2GB › |
Drop-in replacements for DRH8640-2GB
Each part below is currently in our US warehouse, ships same-day for orders before 2pm ET, and includes our 90-day warranty. SKUs link to the full product page with photos, datasheets and B2B quote form.
Dataram DRI550D2/2GB 2GB Kit (2 X 1GB) DDR2-533MHz PC2-4200 ECC Registered CL4 276-Pin DIMM Memory
SKU: DRI550D2-2GB
Price: $152.95
Dataram DRST2000/2GB 2GB Kit (2 X 1GB) DDR2-533MHz PC2-4200 ECC Registered CL4 240-Pin DIMM Dual Rank Memory
SKU: DRST2000-2GB
Price: $206.04
Dataram DRST6300/2GB 2GB Kit (2 X 1GB) DDR2-533MHz PC2-4200 ECC Registered CL4 240-Pin DIMM Dual Rank Memory
SKU: DRST6300-2GB
Price: $206.04
Dataram DRIJS21-5/2GB 2GB Kit (2 X 1GB) DDR2-533MHz PC2-4200 ECC Registered CL4 240-Pin DIMM Single Rank Memory
SKU: DRIJS21-5-2GB
Price: $213.28
Dataram DRH860/2GB 2GB Kit (2 X 1GB) DDR2-533MHz PC2-4200 ECC Registered CL4 240-Pin DIMM Single Rank Memory
SKU: DRH860-2GB
Price: $213.28
Dataram DRH2660/2GB 4GB Kit (2 X 2GB) DDR2-533MHz PC2-4200 ECC Registered CL4 240-Pin DIMM Dual Rank Memory
SKU: DRH2660-2GB
Price: $184.34
Dataram DRST2000/1GB 1GB Kit (2 X 512MB) DDR2-533MHz PC2-4200 ECC Registered CL4 240-Pin DIMM Memory for Sun Sparc Enterprise T1000 Server
SKU: DRST2000-1GB
Price: $189.12
Dataram DRH8640/4GB 4GB Kit (2 X 2GB) DDR2-533MHz PC2-4200 ECC Registered CL4 278-Pin DIMM Memory
SKU: DRH8640-4GB
Price: $135.46
Dataram DRST6300/4GB 4GB Kit (2 x 2GB) DDR2-533MHz PC2-4200 ECC Registered CL4 240-Pin DIMM Dual Rank Memory for Sun X5723a
SKU: DRST6300-4GB
Price: $184.34
Dataram DRIJS21-5/4GB 4GB Kit ( 2 X 2GB ) DDR2-533MHz PC2-4200 ECC Registered CL4 240-Pin DIMM Dual Rank Memory
SKU: DRIJS21-5-4GB
Price: $184.34
Dataram DRH860/4GB 4GB Kit (2 X 2GB) DDR2-533MHz PC2-4200 ECC Registered CL4 240-Pin DIMM Dual Rank Memory
SKU: DRH860-4GB
Price: $184.34
How we pick replacements
Every recommendation above was selected using these criteria:
- Drop-in compatibility — same form factor (2.5"/3.5", PCIe slot, SFP port, etc.), so it fits the original chassis without modification
- Equivalent or better performance — matched on RPM/IOPS/speed/throughput, never downgraded
- Same-brand-preferred — we list the OEM-equivalent first when available, then trusted aftermarket
- Warranty coverage — 90-day Pro Disk warranty on every part, with 1-year option for B2B
- In stock today — never recommend a part that is on backorder
Need help confirming compatibility?
Our engineers validate every replacement against your specific server, switch, or chassis model before shipment. Email sales@prodisknetwork.com with your platform model (e.g., Dell PowerEdge R740, HP DL380 Gen10, Cisco Catalyst 9300) and we will confirm the exact part number that drops into your hardware.