Replacement for RD638G04: Drop-In Alternatives We Stock
Looking for a replacement for the RD638G04 (RD638G04 - Centon 2GB DDR2-667MHz PC2-5300 ECC Unbuffered CL5 240-Pin UDIMM 1.8V Dual Rank Memory Module)? 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 RD638G04
| SKU | RD638G04 |
|---|---|
| Product | RD638G04 - Centon 2GB DDR2-667MHz PC2-5300 ECC Unbuffered CL5 240-Pin UDIMM 1.8V Dual Rank Memory Module |
| Current price | $85.61 |
| Stock status | In Stock |
| Detail page | View RD638G04 › |
Drop-in replacements for RD638G04
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.
CMP667PC2048.01 - Centon 2GB DDR2-667MHz PC2-5300 Non-ECC Unbuffered CL5 240-Pin UDIMM 1.8V Dual Rank Memory Module
SKU: CMP667PC2048.01
Price: $81.80
RD680G07 - Centon 2GB DDR2-667MHz PC2-5300 Non-ECC Unbuffered CL5 240-Pin UDIMM 1.8V Dual Rank Memory Module
SKU: RD680G07
Price: $81.80
RD599H11 - Centon 2GB DDR2-667MHz PC2-5300 Non-ECC Unbuffered CL5 240-Pin UDIMM 1.8V Dual Rank Memory Module
SKU: RD599H11
Price: $81.80
RD618G08IT - Centon 2GB DDR2-667MHz PC2-5300 Non-ECC Unbuffered CL5 240-Pin UDIMM 1.8V Dual Rank Memory Module
SKU: RD618G08IT
Price: $81.80
RD618G08 - Centon 2GB DDR2-667MHz PC2-5300 Non-ECC Unbuffered CL5 240-Pin UDIMM 1.8V Dual Rank Memory Module
SKU: RD618G08
Price: $81.80
RDB62VURCKG02 - Centon 2GB DDR2-667MHz PC2-5300 Non-ECC Unbuffered CL5 240-Pin UDIMM 1.8V Dual Rank Memory Module
SKU: RDB62VURCKG02
Price: $81.80
CMP667PC1024K2 - Centon 2GB Kit (2 X 1GB) DDR2-667MHz PC2-5300 Non-ECC Unbuffered CL5 240-Pin UDIMM 1.8V Single Rank Memory
SKU: CMP667PC1024K2
Price: $152.95
CMP667PC2048K2 - Centon 4GB Kit (2 X 2GB) DDR2-667MHz PC2-5300 Non-ECC Unbuffered CL5 240-Pin UDIMM 1.8V Dual Rank Memory
SKU: CMP667PC2048K2
Price: $155.42
RD668G01 - Centon 2GB DDR2-667MHz PC2-5300 ECC Registered CL5 240-Pin RDIMM 1.8V Dual Rank Memory Module
SKU: RD668G01
Price: $76.18
CMP667RD2048.01 - Centon 2GB DDR2-667MHz PC2-5300 ECC Registered CL5 240-Pin RDIMM 1.8V Dual Rank Memory Module
SKU: CMP667RD2048.01
Price: $76.18
RD589H09 - Centon 2GB DDR2-667MHz PC2-5300 ECC Registered CL5 240-Pin RDIMM 1.8V Dual Rank Memory Module
SKU: RD589H09
Price: $76.18
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.