Replacement for 505546-B21: Drop-In Alternatives We Stock
Looking for a replacement for the 505546-B21 (505546-B21 - HP Microsoft Windows Essential Business Server 2008 Premium Edition Licence OEM 5 User CAL PC)? 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 505546-B21
| SKU | 505546-B21 |
|---|---|
| Product | 505546-B21 - HP Microsoft Windows Essential Business Server 2008 Premium Edition Licence OEM 5 User CAL PC |
| Stock status | In Stock |
| Detail page | View 505546-B21 › |
Drop-in replacements for 505546-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.
J9666A - HP Procurve Advanced Services ZL Module with Microsoft Windows Server 2008 R2 Standard
SKU: J9666A
Price: $1,043.37
HP SN962UC#ABA-C3-07 Desktop Workstation - Z210 Xeon E3 Quad-Core 3.30GHz Bus Speed 5.00GT/s 8 MB Cache RAM 8GB 160GB SATA No Optical Local Area Network Capable Microsoft Windows 7 Professional (32-bit) License Only - No OS Installed U.S. English Tower
SKU: SN962UC-ABA-C3-07
Price: $420.25
325526-001 - HP Mini PCI 54G WiFi 802.11b/g Wireless LAN (WLAN) Network Interface Card for Business Nc4000/ Business Nc4000.
SKU: 325526-001
Price: $78.00
486295-001 - HP Battery (primary)for Business 6530b/ Business 6535b Notebook PCs
SKU: 486295-001
Price: $363.03
HP AQ731AA#ABA Essential USB 2.0-ports Replicator with RJ45 Audio In / Out Ports for Envy / Pavilion / EliteBook Laptop Series
SKU: AQ731AA-ABA
Price: $89.51
AQ731AA - HP Essential USB 2.0 Port Replicator with AC Adapter for Elitebook 2540p Laptop Pc
SKU: AQ731AA
Price: $105.89
510097-001 - HP Essential USB 2.0 Port Replicator with AC Adapter for Elitebook 2540p Laptop Pc
SKU: 510097-001
Price: $125.37
573335-001 - HP Essential USB 2.0 Port Replicator without AC Adapter for Laptop Pc
SKU: 573335-001
Price: $180.76
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.