Replacement for 351109-B21: Drop-In Alternatives We Stock
Looking for a replacement for the 351109-B21 (351109-B21 - HP 1GB DDR-266MHz PC2100 ECC Registered CL2.5 184-Pin DIMM 2.5V Memory Module)? Pro Disk Network ships HP 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 351109-B21
| SKU | 351109-B21 |
|---|---|
| Product | 351109-B21 - HP 1GB DDR-266MHz PC2100 ECC Registered CL2.5 184-Pin DIMM 2.5V Memory Module |
| Current price | $99.03 |
| Stock status | In Stock |
| Detail page | View 351109-B21 › |
Drop-in replacements for 351109-B21
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.
351109-CL1 - HP 2GB Kit (2 X 1GB) DDR-266MHz PC2100 ECC Registered CL2.5 184-Pin DIMM 2.5V Memory
SKU: 351109-CL1
Price: $188.16
351109-FRE - HP 2GB Kit (2 X 1GB) DDR-266MHz PC2100 ECC Registered CL2.5 184-Pin DIMM 2.5V Memory
SKU: 351109-FRE
Price: $223.01
351109-CL2 - HP 3GB Kit (3 X 1GB) DDR-266MHz PC2100 ECC Registered CL2.5 184-Pin DIMM 2.5V Memory
SKU: 351109-CL2
Price: $277.29
351109-CL3 - HP 4GB Kit (4 X 1GB) DDR-266MHz PC2100 ECC Registered CL2.5 184-Pin DIMM 2.5V Memory
SKU: 351109-CL3
Price: $366.43
300679-B21 - HP 1GB Kit (2 X 512MB) DDR-266MHz PC2100 ECC Registered CL2.5 184-Pin DIMM 2.5V Memory
SKU: 300679-B21
Price: $71.58
A6834-60001 - HP 1GB DDR-266MHz PC2100 ECC Registered CL2.5 184-Pin DIMM 2.5V Memory Module
SKU: A6834-60001
Price: $71.58
351200-041 - HP 1GB DDR-266MHz PC2100 ECC Registered CL2 184-Pin DIMM Memory Module
SKU: 351200-041
Price: $71.58
261585-041 - HP 1GB DDR-266MHz PC2100 ECC Registered CL2.5 184-Pin DIMM 2.5V Memory Module
SKU: 261585-041
Price: $71.58
AA657A - HP 1GB DDR-266MHz PC2100 ECC Registered CL2.5 184-Pin DIMM 2.5V Memory Module
SKU: AA657A
Price: $73.68
287497-B21 - HP 1GB DDR-266MHz PC2100 ECC Registered CL2.5 184-Pin DIMM 2.5V Memory Module
SKU: 287497-B21
Price: $73.68
300701-001 - HP 1GB DDR-266MHz PC2100 ECC Registered CL2.5 184-Pin DIMM 2.5V Memory Module
SKU: 300701-001
Price: $73.68
A8088BX - HP 1GB DDR-266MHz PC2100 ECC Registered CL2.5 184-pin DIMM Memory
SKU: A8088BX
Price: $99.03
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.