Replacement for 408854-B21: Drop-In Alternatives We Stock
Looking for a replacement for the 408854-B21 (408854-B21 - HP 8GB Kit (2 X 4GB) DDR2-667MHz PC2-5300 ECC Registered CL5 240-Pin DIMM 1.8V Dual Rank Memory)? 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 408854-B21
| SKU | 408854-B21 |
|---|---|
| Product | 408854-B21 - HP 8GB Kit (2 X 4GB) DDR2-667MHz PC2-5300 ECC Registered CL5 240-Pin DIMM 1.8V Dual Rank Memory |
| Current price | $170.53 |
| Stock status | In Stock |
| Detail page | View 408854-B21 › |
Drop-in replacements for 408854-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.
408854-B22 - HP 8GB Kit (2 X 4GB) DDR2-667MHz PC2-5300 ECC Registered CL5 240-Pin DIMM Single Rank Memory
SKU: 408854-B22
Price: $242.58
408854-S21 - HP 8GB Kit (2 X 4GB) DDR2-667MHz PC2-5300 ECC Registered CL5 240-Pin DIMM 1.8V Dual Rank Memory
SKU: 408854-S21
Price: $286.74
408854-128 - HP 128GB Kit (32 X 4GB) DDR2-667MHz PC2-5300 ECC Registered CL5 240-Pin DIMM 1.8V Dual Rank Memory
SKU: 408854-128
Price: $113.68
408854-16G - HP 16GB Kit (4 X 4GB) DDR2-667MHz PC2-5300 ECC Registered CL5 240-Pin DIMM Dual Rank Memory
SKU: 408854-16G
Price: $558.36
408854-24G - HP 24GB Kit (6 X 4GB) DDR2-667MHz PC2-5300 ECC Registered CL5 240-Pin DIMM Dual Rank Memory
SKU: 408854-24G
Price: $845.08
408854-32G - HP 32GB Kit (8 X 4GB) DDR2-667MHz PC2-5300 ECC Registered CL5 240-Pin DIMM Dual Rank Memory
SKU: 408854-32G
Price: $1,131.79
408854-40G - HP 40GB Kit (10 X 4GB) DDR2-667MHz PC2-5300 ECC Registered CL5 240-Pin DIMM Dual Rank Memory
SKU: 408854-40G
Price: $1,418.53
408854-48G - HP 48GB Kit (12 X 4GB) DDR2-667MHz PC2-5300 ECC Registered CL5 240-Pin DIMM Dual Rank Memory
SKU: 408854-48G
Price: $1,705.25
408854-56G - HP 56GB Kit (14 X 4GB) DDR2-667MHz PC2-5300 ECC Registered CL5 240-Pin DIMM Dual Rank Memory
SKU: 408854-56G
Price: $1,991.96
408854-64G - HP 64GB Kit (16 X 4GB) DDR2-667MHz PC2-5300 ECC Registered CL5 240-Pin DIMM Dual Rank Memory
SKU: 408854-64G
Price: $2,278.68
408854-96G - HP 96GB Kit (24 X 4GB) DDR2-667MHz PC2-5300 ECC Registered CL5 240-Pin DIMM Dual Rank Memory
SKU: 408854-96G
Price: $3,440.67
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.