Replacement for A5856A: Drop-In Alternatives We Stock
Looking for a replacement for the A5856A (A5856A - HP 4SI 4-Channel PCI RAID 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 A5856A
| SKU | A5856A |
|---|---|
| Product | A5856A - HP 4SI 4-Channel PCI RAID Controller |
| Current price | $2,324.33 |
| Stock status | In Stock |
| Detail page | View A5856A › |
Drop-in replacements for A5856A
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.
RR2320 - HP Rocketraid 2320 Controller 8-Channel PCi-Express To SATA II Raid Controller
SKU: RR2320
Price: $643.83
238633-B21 - HP Smart Array 5312 Dual Channel Ultra 160 128MB ECC Up to 160Mb/s Per Channel 2 x Ultra-160 SCSI RAID Controller
SKU: 238633-B21
Price: $184.21
AJ954A - HP StorageWorks 2000fc Hard Drive Array Fibre Channel Controller RAID Supported 12 x Total Bays Network (RJ-45) Fibre Channel 2U Rack-mountable
SKU: AJ954A
Price: $1,969.05
A7564A - HP StorageWorks MSA 1500 Hard Drive Array Fibre Channel Controller RAID Supported 14 x Total Bays Fibre Channel 2U Rack-mountable
SKU: A7564A
Price: $8,007.61
578819-001 - HP Smart Array P410 PCI-Express x8 SAS 300Mb/s Low Profile RAID Storage Controller Card with 1GB Flash Backed Cache Controller
SKU: 578819-001
Price: $71.58
578230-B21 - HP Smart Array P410 PCI-Express x8 SAS 300Mb/s Low Profile RAID Storage Controller Card with 512MB Flash Backed Cache Controller
SKU: 578230-B21
Price: $163.16
572531-B21 - HP Smart Array P411 PCI-Express x8 SAS 300Mb/s RAID Storage Controller Card with 1GB Flash Backed Cache Controller
SKU: 572531-B21
Price: $294.74
400546-001 - HP Smart Array 221 Single-Channel Wide Ultra-2 SCSI PCI RAID Controller Card with 6MB Cache
SKU: 400546-001
Price: $71.58
405832-001 - HP Smart Array P400 PCI-Express 8-Channel SAS RAID Controller Card with 256MB Battery Backed Write Cache
SKU: 405832-001
Price: $71.58
012760-002 - HP Smart Array P400 PCI-Express 8-Channel Serial Attached SCSI / SAS RAID Controller Card with 256MB Battery Backed Write Cache
SKU: 012760-002
Price: $71.58
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.