Replacement for 311-9939: Drop-In Alternatives We Stock
Looking for a replacement for the 311-9939 (311-9939 - Dell 4GB Kit (4 X 1GB) DDR2-800MHz PC2-6400 ECC Registered CL6 240-Pin DIMM Single Rank Memory)? Pro Disk Network ships Dell 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 311-9939
| SKU | 311-9939 |
|---|---|
| Product | 311-9939 - Dell 4GB Kit (4 X 1GB) DDR2-800MHz PC2-6400 ECC Registered CL6 240-Pin DIMM Single Rank Memory |
| Current price | $603.89 |
| Stock status | In Stock |
| Detail page | View 311-9939 › |
Drop-in replacements for 311-9939
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.
311-7700 - Dell 32GB Kit (8 X 4GB) DDR2-800MHz PC2-6400 ECC Unbuffered CL6 240-Pin DIMM Dual Rank Memory
SKU: 311-7700
Price: $251.97
311-7444 - Dell 4GB Kit (2 X 2GB) DDR2-800MHz PC2-6400 non-ECC Unbuffered CL5 240-Pin DIMM Dual Rank Memory
SKU: 311-7444
Price: $261.45
311-7595 - Dell 4GB Kit (2 X 2GB) DDR2-800MHz PC2-6400 non-ECC Unbuffered CL5 240-Pin DIMM Dual Rank Memory
SKU: 311-7595
Price: $261.45
311-9937 - Dell 4GB Kit (2 X 2GB) DDR2-800MHz PC2-6400 ECC Registered CL6 240-Pin DIMM Dual Rank Memory
SKU: 311-9937
Price: $358.79
311-7701 - Dell 16GB Kit (4 X 4GB) DDR2-800MHz PC2-6400 ECC Unbuffered CL6 240-Pin DIMM Dual Rank Memory
SKU: 311-7701
Price: $1,309.58
311-9835 - Dell 128GB Kit (32 X 4GB) DDR2-800MHz PC2-6400 ECC Registered CL6 240-Pin DIMM Dual Rank Memory PowerEdge for PowerEdge Servers
SKU: 311-9835
Price: $5,351.11
311-7374 - Dell 2GB Kit (2 X 1GB) DDR2-800MHz PC2-6400 non-ECC DIMM Memory
SKU: 311-7374
Price: $257.30
311-9938 - Dell 2GB Kit (2 X 1GB) DDR2-800MHz PC2-6400 ECC Registered CL6 240-Pin DIMM Single Rank Memory
SKU: 311-9938
Price: $310.11
311-8646 - Dell 2GB Kit (2 X 1GB) DDR2-800MHz PC2-6400 ECC Registered CL6 240-Pin DIMM Single Rank Memory
SKU: 311-8646
Price: $310.11
311-7471 - Dell 1GB Kit (2 X 512MB) DDR2-800MHz PC2-6400 ECC Unbuffered CL6 240-Pin DIMM Dual Rank Memory
SKU: 311-7471
Price: $318.14
311-7917 - Dell 1GB Kit (2 X 512MB) DDR2-800MHz PC2-6400 ECC Unbuffered CL6 240-Pin DIMM Dual Rank Memory
SKU: 311-7917
Price: $318.14
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.