Replacement for 731765-S21-04: Drop-In Alternatives We Stock
Looking for a replacement for the 731765-S21-04 (731765-S21-04 - HP 8GB DDR3-1600MHz PC3-12800 ECC Registered CL11 240-Pin RDIMM 1.35V Low Voltage 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 731765-S21-04
| SKU | 731765-S21-04 |
|---|---|
| Product | 731765-S21-04 - HP 8GB DDR3-1600MHz PC3-12800 ECC Registered CL11 240-Pin RDIMM 1.35V Low Voltage Single Rank Memory Module |
| Current price | $154.47 |
| Stock status | In Stock |
| Detail page | View 731765-S21-04 › |
Drop-in replacements for 731765-S21-04
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.
2660-0400 - HP 8GB DDR3-1600MHz PC-12800 ECC Registered CL11 240-Pin DIMM Single Rank Memory Module
SKU: 2660-0400
Price: $96.84
757048-001 - HP 8GB DDR3-1600MHz PC-12800 ECC Registered CL11 240-Pin DIMM Single Rank Memory Module
SKU: 757048-001
Price: $194.74
604895-B21 - HP 4GB DDR3-1600MHz PC3-12800 ECC Registered CL11 240-Pin DIMM Single Rank Memory Module
SKU: 604895-B21
Price: $87.46
740904-154 - HP 4GB PC3-12800 DDR3-1600MHz ECC Registered CL11 RDIMM Memory Module
SKU: 740904-154
Price: $87.46
2660-0401 - HP 16GB DDR3-1600MHz PC3-12800 ECC Registered CL11 240-Pin DIMM 1.35V Low Voltage Dual Rank Memory Module
SKU: 2660-0401
Price: $96.84
HP 759904R-B21#0D1 16GB PC3-12800 DDR3-1600MHz ECC Registered CL11 RDIMM Dual-Rank Memory Module
SKU: 759904R-B21-0D1
Price: $108.41
759904R-B21 - HP 16GB PC3-12800 DDR3-1600MHz ECC Registered CL11 RDIMM Dual-Rank Memory Module
SKU: 759904R-B21
Price: $108.41
804611-001 - HP 16GB DDR3-1600MHz PC3-12800 ECC Registered CL11 240-Pin DIMM 1.35V Low Voltage Dual Rank Memory Module
SKU: 804611-001
Price: $160.00
647904-B21 - HP 32GB DDR3-1600MHz PC3-12800 ECC Registered CL11 240-Pin Load Reduced DIMM 1.35V Low Voltage Quad Rank Memory Module
SKU: 647904-B21
Price: $175.51
HP D3D04AV#ABA 64GB Kit (4 X 16GB) PC3-12800 DDR3-1600MHz ECC Registered CL11 RDIMM Dual-Rank Memory
SKU: D3D04AV-ABA
Price: $401.08
D3D04AV - HP 64GB Kit (4 X 16GB) PC3-12800 DDR3-1600MHz ECC Registered CL11 RDIMM Dual-Rank Memory
SKU: D3D04AV
Price: $401.08
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.