Replacement for 820834-B21: Drop-In Alternatives We Stock
Looking for a replacement for the 820834-B21 (820834-B21 - HP Smart Array P440 / 2GB FBWC 12GB 1-Port INT SAS Controller)? 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 820834-B21
| SKU | 820834-B21 |
|---|---|
| Product | 820834-B21 - HP Smart Array P440 / 2GB FBWC 12GB 1-Port INT SAS Controller |
| Current price | $128.42 |
| Stock status | In Stock |
| Detail page | View 820834-B21 › |
Drop-in replacements for 820834-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.
830057-001 - HP Smart Array P440 / 2GB FBWC 12GB 1-Port INT SAS Controller
SKU: 830057-001
Price: $128.42
726823-001 - HP Smart Array P440/4GB FBWC 12GB 1-Port INT SAS Controller
SKU: 726823-001
Price: $152.63
P440AR-2GB-FBWC - HP Smart Array P440ar Dual Port PCI-Express 3 x8 12GB/s SAS Mezzanine Storage Controller Card with 2GB Flash Back Write Cache
SKU: P440AR-2GB-FBWC
Price: $205.26
843199-B21 - HP Smart Array P840AR 2-Port 12Gb/s SAS Controller with 2GB FBWC
SKU: 843199-B21
Price: $163.16
726748-001 - HP Smart Array P840ar 12GB Dual Port Internal SAS Controller with 2GB Fbwc
SKU: 726748-001
Price: $173.68
813586-001 - HP Smart Array P840AR 2-Port 12Gb/s Internal SAS Controller with 2GB FBWC
SKU: 813586-001
Price: $173.68
758803-001 - HP Smart Array P240NR 4-Port SAS 12Gb/s 1GB FBWC Controller for Synergy 660 G9 Compute Module
SKU: 758803-001
Price: $138.95
726815-002 - HP Smart Array P840 2-Port SCSI 12Gb/s PCI Express RAID Controller Card with 4GB FBWC
SKU: 726815-002
Price: $149.47
726821-B21 - HP Smart Array P440 PCI-Express 3.0 X8 12GB 1-Port Internal SAS Controller with 4GB Fbwc
SKU: 726821-B21
Price: $163.16
726825-B21-08 - HP Smart Array P441/4GB Dual Port SAS 12Gb/s PCI Express 3.0 x8 Controller with FBWC
SKU: 726825-B21-08
Price: $661.68
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.