Replacement for 698531-B21: Drop-In Alternatives We Stock
Looking for a replacement for the 698531-B21 (698531-B21 - HP Smart Array P431/2GB Fbwc 12GB 2-Ports Ext 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 698531-B21
| SKU | 698531-B21 |
|---|---|
| Product | 698531-B21 - HP Smart Array P431/2GB Fbwc 12GB 2-Ports Ext SAS Controller |
| Current price | $547.37 |
| Stock status | In Stock |
| Detail page | View 698531-B21 › |
Drop-in replacements for 698531-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.
698536-B21 - HP Smart Array P731m 6GB 4-Ports Ext Mezzanine SAS Controller with 512MB Fbwc
SKU: 698536-B21
Price: $184.21
615418-B21 - HP Smart Array P822/2GB FBWC PCI-Express 6GB/s 2-Ports Internal/4-Ports External SAS/SATA RAID Controller Card
SKU: 615418-B21
Price: $155.79
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
726897-B21 - HP Smart Array P840 12GB 2-Ports Internal SAS Controller with 4GB Fbwc
SKU: 726897-B21
Price: $147.37
761874-B21 - HP Smart Array P840/4GB FBWC 12GB/s 2-Ports PCI-Express 3.0 x8 Internal FIO SAS Controller Card
SKU: 761874-B21
Price: $205.26
698532-B21 - HP Smart Array P431/4GB Fbwc 12GB 2-Ports External SAS Controller
SKU: 698532-B21
Price: $465.26
726827-001 - HP Smart Array P441 / 4GB FBWC 12GB 2-Ports SAS Controller Card
SKU: 726827-001
Price: $652.28
830057-001 - HP Smart Array P440 / 2GB FBWC 12GB 1-Port INT SAS Controller
SKU: 830057-001
Price: $128.42
820834-B21 - HP Smart Array P440 / 2GB FBWC 12GB 1-Port INT SAS Controller
SKU: 820834-B21
Price: $128.42
843199-B21 - HP Smart Array P840AR 2-Port 12Gb/s SAS Controller with 2GB FBWC
SKU: 843199-B21
Price: $163.16
813586-001 - HP Smart Array P840AR 2-Port 12Gb/s Internal SAS Controller with 2GB FBWC
SKU: 813586-001
Price: $173.68
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.