Replacement for A4999A: Drop-In Alternatives We Stock
Looking for a replacement for the A4999A (A4999A - HP 1-Port Ultra-2 SCSI PCI Adapter Card)? 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 A4999A
| SKU | A4999A |
|---|---|
| Product | A4999A - HP 1-Port Ultra-2 SCSI PCI Adapter Card |
| Current price | $357.89 |
| Stock status | In Stock |
| Detail page | View A4999A › |
Drop-in replacements for A4999A
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.
313381-B21 - HP Nc7170 PCI-x Dual Port 1000t Gigabit Server Adapter Network Adapter PCI-x Hot-pluggable 133MHz 2 Ports (Full Height) Bracket.
SKU: 313381-B21
Price: $79.36
AB290A - HP PCI-X 2-Port Ultra-320 SCSI 1000Base-T Gigabit LAN Host Bus Adapter
SKU: AB290A
Price: $71.58
AB290-60001 - HP PCI-X 2-Port Ultra-320 SCSI 1000Base-T Gigabit LAN Host Bus Adapter
SKU: AB290-60001
Price: $71.58
A5150-60001 - HP Dual-Port Ultra-2 SCSI Low Voltage Differential (LVD) PCI Adapter
SKU: A5150-60001
Price: $128.95
146094-001 - HP Single Channel Ultra-2 Wide SCSI PCI Express Host Bus Adapter Card
SKU: 146094-001
Price: $128.42
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
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.