Replacement for 311-3990: Drop-In Alternatives We Stock
Looking for a replacement for the 311-3990 (311-3990 - Dell 2GB DDR-266MHz PC2100 ECC Registered CL2.5 184-Pin DIMM Memory Module)? 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 311-3990
| SKU | 311-3990 |
|---|---|
| Product | 311-3990 - Dell 2GB DDR-266MHz PC2100 ECC Registered CL2.5 184-Pin DIMM Memory Module |
| Current price | $117.38 |
| Stock status | In Stock |
| Detail page | View 311-3990 › |
Drop-in replacements for 311-3990
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.
311-3070 - Dell 2GB DDR-266MHz PC2100 ECC Registered CL2.5 184-Pin DIMM Memory Module
SKU: 311-3070
Price: $117.38
311-1827 - Dell 4GB Kit (2 X 2GB) DDR-266MHz PC2100 ECC Registered CL2.5 184-Pin DIMM Memory
SKU: 311-1827
Price: $223.01
311-2445 - Dell 4GB Kit (2 X 2GB) DDR-266MHz PC2100 ECC Registered CL2.5 184-Pin DIMM Memory for PowerEdge Servers
SKU: 311-2445
Price: $223.01
311-1621 - Dell 2GB Kit (2 X 1GB) DDR-266MHz PC2100 ECC Registered CL2.5 184-Pin DIMM Memory
SKU: 311-1621
Price: $223.01
311-2739 - Dell 8GB Kit (4 X 2GB) DDR-266MHz PC2100 ECC Registered CL2.5 184-Pin DIMM Memory
SKU: 311-2739
Price: $434.28
311-2349 - Dell 8GB Kit (4 X 2GB) DDR-266MHz PC2100 ECC Registered CL2.5 184-Pin DIMM Memory
SKU: 311-2349
Price: $434.28
311-1553 - Dell 8GB Kit (4 X 2GB) DDR-266MHz PC2100 ECC Registered 184-Pin DIMM Memory for PowerEdge Servers
SKU: 311-1553
Price: $434.28
311-3049 - Dell 2GB Kit (4 X 512MB) 512MB DDR-266MHz PC2100 ECC Registered CL2.5 184-Pin DIMM Memory
SKU: 311-3049
Price: $434.28
311-2745 - Dell 12GB Kit (6 X 2GB) DDR-266MHz PC2100 ECC Registered CL2.5 184-Pin DIMM Memory
SKU: 311-2745
Price: $657.28
311-6430 - Dell 16GB Kit (8 X 2GB) DDR-266MHz PC2100 ECC Registered CL2.5 184-Pin DIMM Memory
SKU: 311-6430
Price: $880.29
311-6599 - Dell 16GB Kit (8 X 2GB) DDR-266MHz PC2100 ECC Registered CL2.5 184-Pin DIMM Memory
SKU: 311-6599
Price: $880.29
311-1785 - Dell 1GB DDR-266MHz PC2100 ECC Registered CL2.5 184-Pin DIMM Memory Module
SKU: 311-1785
Price: $124.32
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.