Replacement for A9891A: Drop-In Alternatives We Stock
Looking for a replacement for the A9891A (A9891A - HP Smart Array 6404 PCI-X 64-bit 133MHz 4-Channel SCSI Ultra320 68-Pin 256MB Internal RAID Controller Card for ProLiant ML570/DL580 G3 Server)? 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 A9891A
| SKU | A9891A |
|---|---|
| Product | A9891A - HP Smart Array 6404 PCI-X 64-bit 133MHz 4-Channel SCSI Ultra320 68-Pin 256MB Internal RAID Controller Card for ProLiant ML570/DL580 G3 Server |
| Current price | $294.74 |
| Stock status | In Stock |
| Detail page | View A9891A › |
Drop-in replacements for A9891A
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.
273914-B21 - HP Smart Array 6404 PCI-X 64-bit 133MHz 4-Channel SCSI Ultra320 68-Pin 256MB Internal RAID Controller Card for ProLiant ML570/DL580 G3
SKU: 273914-B21
Price: $294.74
452240-B21 - HP Smart Array 6404 4 Channel Ultra320 SCSI 64-Bit 133MHz 512MB Cache 320MB/s PCI-X RAID Storage Controller Card
SKU: 452240-B21
Price: $538.95
331374-001 - HP Smart Array 6404 4Channel PCI 64-bit 133MHz Ultra-320 SCSI Controller with 256MB Cache
SKU: 331374-001
Price: $250.53
372538-B21 - HP 512MB 72-Bit DDR Battery Backed Write Cache (BBWC) Memory Board with Battery for HP Smart Array P600/6402/6404
SKU: 372538-B21
Price: $345.26
378202-001 - HP 512MB 72-Bit DDR Battery Backed Write Cache (BBWC) Memory Board with Battery for Smart Array P600/6402/6404
SKU: 378202-001
Price: $345.26
225338-B21 - HP Smart Array 532 Dual Channel Ultra320 66MHz 64Bit 68-Pin 32MB Cache PCI SCSI Array Controller Card
SKU: 225338-B21
Price: $110.53
226874-001 - HP Smart Array 532 Dual Channel Ultra320 66MHz 64Bit 68-Pin 32MB Cache PCI SCSI Array Controller Card
SKU: 226874-001
Price: $110.53
226874R-001 - HP Smart Array 532 Dual Channel Ultra320 66MHz 64Bit 68-Pin 32MB Cache PCI SCSI Array Controller Card
SKU: 226874R-001
Price: $157.84
305414-001 - HP Smart Array 641 64-Bit 133MHz PCI-X SCSI Ultra320 68-Pin Single Channel RAID Controller with 64MB Cache
SKU: 305414-001
Price: $71.58
011815-002 - HP Smart Array 642 Dual Channel 64-bit 133MHz PCI-x Ultra-320 SCSI RAID Controller Card Only
SKU: 011815-002
Price: $117.89
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.