Replacement for 647907-S21: Drop-In Alternatives We Stock
Looking for a replacement for the 647907-S21 (647907-S21 - HP 4GB DDR3-1333MHz PC3-10600 ECC Unbuffered CL9 240-Pin DIMM 1.35V Low Voltage Dual 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 647907-S21
| SKU | 647907-S21 |
|---|---|
| Product | 647907-S21 - HP 4GB DDR3-1333MHz PC3-10600 ECC Unbuffered CL9 240-Pin DIMM 1.35V Low Voltage Dual Rank Memory Module |
| Current price | $147.37 |
| Stock status | In Stock |
| Detail page | View 647907-S21 › |
Drop-in replacements for 647907-S21
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.
647907-TV1 - HP 4GB DDR3-1333MHz PC3-10600 ECC Unbuffered CL9 240-Pin DIMM 1.35V Low Voltage Dual Rank Memory Module
SKU: 647907-TV1
Price: $127.09
647907-B21 - HP 4GB DDR3-1333MHz PC3-10600 ECC Unbuffered CL9 240-Pin DIMM 1.35V Low Voltage Dual Rank Memory Module
SKU: 647907-B21
Price: $155.79
HP 647907-B21#0D1 4GB PC3-10600 DDR3-1333MHz ECC Unbuffered CL9 UDIMM 1.35V Dual-Rank Memory Module
SKU: 647907-B21-0D1
Price: $136.91
647907-B212 - HP 4GB PC3-10600 DDR3-1333MHz ECC Unbuffered CL9 UDIMM 1.35V Dual-Rank Memory Module
SKU: 647907-B212
Price: $136.91
497158-C01 - HP 4GB DDR3-1333MHz PC3-10600 non-ECC Unbuffered CL9 240-Pin DIMM Dual Rank Memory Module
SKU: 497158-C01
Price: $85.12
534752-010 - HP 4GB DDR3-1333MHz PC3-10600 non-ECC Unbuffered CL9 240-Pin DIMM Dual Rank Memory Module
SKU: 534752-010
Price: $85.12
497158-D28 - HP 4GB DDR3-1333MHz PC3-10600 non-ECC Unbuffered CL9 240-Pin DIMM Dual Rank Memory Module
SKU: 497158-D28
Price: $85.12
497158-D92 - HP 4GB DDR3-1333MHz PC3-10600 non-ECC Unbuffered CL9 240-Pin DIMM Dual Rank Memory Module
SKU: 497158-D92
Price: $85.12
534752-002 - HP 4GB DDR3-1333MHz PC3-10600 non-ECC Unbuffered CL9 240-Pin DIMM Dual Rank Memory Module
SKU: 534752-002
Price: $85.12
LB435AT - HP 4GB DDR3-1333MHz PC3-10600 non-ECC Unbuffered CL9 240-Pin DIMM 1.35V Low Voltage Memory Module
SKU: LB435AT
Price: $85.12
531417-014 - HP 4GB DDR3-1333MHz PC3-10600 non-ECC Unbuffered CL9 240-Pin DIMM Dual Rank Memory Module
SKU: 531417-014
Price: $85.12
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.