Replacement for 855149-B21: Drop-In Alternatives We Stock
Looking for a replacement for the 855149-B21 (855149-B21 - HP 4GB DDR4-2133MHz PC4-17000 ECC Registered CL15 288-Pin DIMM 1.2V Single Rank 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 855149-B21
| SKU | 855149-B21 |
|---|---|
| Product | 855149-B21 - HP 4GB DDR4-2133MHz PC4-17000 ECC Registered CL15 288-Pin DIMM 1.2V Single Rank Memory Module |
| Current price | $140.87 |
| Stock status | In Stock |
| Detail page | View 855149-B21 › |
Drop-in replacements for 855149-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.
752367-581 - HP 4GB DDR4-2133MHz PC4-17000 ECC Registered CL15 288-Pin DIMM 1.2V Single Rank Memory Module
SKU: 752367-581
Price: $71.58
774169-001 - HP 4GB DDR4-2133MHz PC4-17000 ECC Registered CL15 288-Pin DIMM 1.2V Single Rank Memory Module
SKU: 774169-001
Price: $73.68
752367-081 - HP 4GB DDR4-2133MHz PC4-17000 ECC Registered CL15 288-Pin DIMM 1.2V Single Rank Memory Module
SKU: 752367-081
Price: $73.68
726717-B21 - HP 4GB DDR4-2133MHz PC4-17000 ECC Registered CL15 288-Pin DIMM 1.2V Single Rank Memory Module
SKU: 726717-B21
Price: $73.68
726717-S21 - HP 4GB DDR4-2133MHz PC4-17000 ECC Registered CL15 288-Pin DIMM 1.2V Single Rank Memory Module
SKU: 726717-S21
Price: $73.68
753219-B21 - HP 4GB DDR4-2133MHz PC4-17000 ECC Registered CL15 288-Pin DIMM 1.2V Single Rank Memory Module
SKU: 753219-B21
Price: $140.87
790112-001 - HP 4GB DDR4-2133MHz PC4-17000 ECC Registered CL15 288-Pin DIMM 1.2V Single Rank Memory Module
SKU: 790112-001
Price: $140.87
803026-S21 - HP 4GB DDR4-2133MHz PC4-17000 ECC Registered CL15 288-Pin DIMM 1.2V Single Rank Memory Module
SKU: 803026-S21
Price: $140.87
803027-B21 - HP 4GB DDR4-2133MHz PC4-17000 ECC Registered CL15 288-Pin DIMM 1.2V Single Rank Memory Module
SKU: 803027-B21
Price: $140.87
803655-001 - HP 4GB DDR4-2133MHz PC4-17000 ECC Registered CL15 288-Pin DIMM 1.2V Single Rank Memory Module
SKU: 803655-001
Price: $140.87
780453-001 - HP 4GB DDR4-2133MHz PC4-17000 ECC Registered CL15 288-Pin DIMM 1.2V Single Rank Memory Module
SKU: 780453-001
Price: $140.87
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.