Replacement for 317739-B21: Drop-In Alternatives We Stock
Looking for a replacement for the 317739-B21 (317739-B21 - HP / Compaq 256MB SDRAM-100MHz PC100 ECC Registered CL2 168-Pin DIMM 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 317739-B21
| SKU | 317739-B21 |
|---|---|
| Product | 317739-B21 - HP / Compaq 256MB SDRAM-100MHz PC100 ECC Registered CL2 168-Pin DIMM Memory Module |
| Current price | $267.14 |
| Stock status | In Stock |
| Detail page | View 317739-B21 › |
Drop-in replacements for 317739-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.
115945-041 - HP / Compaq 1GB SDRAM-100MHz PC100 ECC Registered CL2 168-Pin DIMM Memory Module
SKU: 115945-041
Price: $371.34
110959-041 - HP / Compaq 512MB SDRAM-100MHz PC100 ECC Registered CL2 168-Pin DIMM Memory Module for ProLiant 8000 / 8500 Servers
SKU: 110959-041
Price: $564.83
306432-002 - HP 256MB SDRAM-100MHz PC100 ECC Registered CL2 168-Pin DIMM Memory Module
SKU: 306432-002
Price: $71.58
319326-001 - HP / Compaq 32MB SDRAM-100MHz PC100 non-ECC Unbuffered CL2 168-Pin DIMM Memory Module for Presario 2400 Desktop
SKU: 319326-001
Price: $147.09
1818-7555 - HP 256MB 100MHz PC100 ECC Unbuffered CL2 168-Pin SDRAM DIMM Memory Module
SKU: 1818-7555
Price: $96.20
317745-001 - HP / Compaq 64MB SDRAM-100MHz PC100 CL2 168-Pin DIMM Memory Module for ProLiant 3000 Server
SKU: 317745-001
Price: $71.58
1818-7325 - HP 64MB SDRAM-100MHz PC100 ECC Registered CL2 168-Pin DIMM Memory Module
SKU: 1818-7325
Price: $147.09
333143-002 - HP / Compaq 64MB PC100 100MHz ECC Registered 168-Pin DIMM Memory Module
SKU: 333143-002
Price: $147.09
232307-B21 - HP / Compaq 1GB Kit (4 X 256MB) 100MHz ECC SDRAM DIMM Memory
SKU: 232307-B21
Price: $951.84
127007-021 - HP / Compaq 128MB SDRAM-133MHz PC133 ECC Registered CL3 168-Pin DIMM Memory Module
SKU: 127007-021
Price: $71.58
306432-001 - HP 256MB 100MHz PC100 ECC Registered CL2 168-Pin DIMM 3.3V Memory Module
SKU: 306432-001
Price: $71.58
317749-001 - HP 256MB 100MHz PC100 ECC Registered CL2 168-Pin DIMM 3.3V Memory Module
SKU: 317749-001
Price: $71.58
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.