Replacement for 412911-B21: Drop-In Alternatives We Stock
Looking for a replacement for the 412911-B21 (412911-B21 - HP Single Channel Ultra-320 PCI Express Host Bus Adapter)? 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 412911-B21
| SKU | 412911-B21 |
|---|---|
| Product | 412911-B21 - HP Single Channel Ultra-320 PCI Express Host Bus Adapter |
| Current price | $194.74 |
| Stock status | In Stock |
| Detail page | View 412911-B21 › |
Drop-in replacements for 412911-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.
AT134A - HP Integrity SC11XE Single Channel Ultra-320 SCSI PCI Express Host Bus Adapter
SKU: AT134A
Price: $221.05
SC11XE - HP Single Channel 68-Pin PCI-Express X4 LVD Ultra-320 SCSI Host Bus Adapter with Standard Bracket Card Only
SKU: SC11XE
Price: $480.21
366025-001 - HP 2GB Single Channel PCI Express Fibre Channel Host Bus Adapter for Integrity rx2600 Server
SKU: 366025-001
Price: $537.39
146094-001 - HP Single Channel Ultra-2 Wide SCSI PCI Express Host Bus Adapter Card
SKU: 146094-001
Price: $128.42
A7173-60011 - HP Dual Channel 64-bit 133MHz PCI-x Ultra-320 SCSI Host Bus Adapter with Standard Bracket
SKU: A7173-60011
Price: $315.66
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.