Replacement for 576951-B21: Drop-In Alternatives We Stock
Looking for a replacement for the 576951-B21 (576951-B21 - HP 8GB DDR3-1066 PC3-8500 240-Pin ECC RDIMM RAM for ProLiant BL2x220c G6)? 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 576951-B21
| SKU | 576951-B21 |
|---|---|
| Product | 576951-B21 - HP 8GB DDR3-1066 PC3-8500 240-Pin ECC RDIMM RAM for ProLiant BL2x220c G6 |
| Current price | $223.88 |
| Stock status | In Stock |
| Detail page | View 576951-B21 › |
Drop-in replacements for 576951-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.
500600-S21 - HP 8GB DDR3-1066MHz PC3-8500 ECC Registered CL7 240-Pin DIMM 1.35V Low Voltage Very Low Profile (VLP) Quad Rank Memory Module
SKU: 500600-S21
Price: $90.28
516423-S21 - HP 8GB DDR3-1066MHz PC3-8500 ECC Registered CL7 240-Pin DIMM 1.35V Low Voltage Dual Rank Memory Module
SKU: 516423-S21
Price: $93.20
RP000122404 - HP 8GB DDR3-1066MHz PC3-8500 ECC Registered CL7 240-Pin DIMM Dual Rank Memory Module
SKU: RP000122404
Price: $93.20
500206-B21 - HP 8GB DDR3-1066MHz PC3-8500 ECC Registered CL7 240-Pin DIMM Dual Rank Memory Module
SKU: 500206-B21
Price: $93.20
501537-001 - HP 8GB DDR3-1066MHz PC3-8500 ECC Registered CL7 240-Pin DIMM 1.35V Low Voltage Dual Rank Memory Module
SKU: 501537-001
Price: $93.20
5164-2321 - HP 8GB DDR3-1066MHz PC3-8500 ECC Registered CL7 240-Pin DIMM Dual Rank Memory Module
SKU: 5164-2321
Price: $93.20
500206-071N - HP 8GB DDR3-1066MHz PC3-8500 ECC Registered CL7 240-Pin DIMM 1.35V Low Voltage Dual Rank Memory Module
SKU: 500206-071N
Price: $93.20
500206R-071 - HP 8GB DDR3-1066MHz PC3-8500 ECC Registered CL7 240-Pin DIMM 1.35V Low Voltage Dual Rank Memory Module
SKU: 500206R-071
Price: $93.20
500663-B21 - HP 8GB DDR3-1066MHz PC3-8500 ECC Registered CL7 240-Pin DIMM 1.35V Low Voltage Dual Rank Memory Module
SKU: 500663-B21
Price: $93.20
595423R-001 - HP 8GB DDR3-1066MHz PC3-8500 ECC Registered CL7 240-Pin DIMM 1.35V Low Voltage Dual Rank Memory Module
SKU: 595423R-001
Price: $113.08
500217-071 - HP 8GB DDR3-1066MHz PC3-8500 ECC Registered CL7 240-Pin DIMM 1.35V Low Voltage Dual Rank Memory Module
SKU: 500217-071
Price: $113.08
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.