Replacement for A1991-66006: Drop-In Alternatives We Stock
Looking for a replacement for the A1991-66006 (A1991-66006 - HP I/O Slot Board)? 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 A1991-66006
| SKU | A1991-66006 |
|---|---|
| Product | A1991-66006 - HP I/O Slot Board |
| Current price | $189.47 |
| Stock status | In Stock |
| Detail page | View A1991-66006 › |
Drop-in replacements for A1991-66006
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.
C1503-66006 - HP 2GB/4GB 4mm DAT DDS-1 SCSI Single Ended Internal Tape Drive
SKU: C1503-66006
Price: $730.72
728537-001 - HP Slot 2/5 PCI-Express X16 Slot 3/6 PCI-Express X8 Riser Board for ProLiant DL380p Gen8 Server
SKU: 728537-001
Price: $189.47
500127-B21 - HP 1200-Watts Common Slot Common Slot High Efficiency Hot-Pluggable Power Supply
SKU: 500127-B21
Price: $220.55
HP J4874A#ABA ProCurve 9315M 15 x Expansion Slot Slot Network Switch Chassis
SKU: J4874A-ABA
Price: $1,114.11
HP J4874A#ACC ProCurve 9315M 15 x Expansion Slot Slot Network Switch Chassis
SKU: J4874A-ACC
Price: $1,114.11
J2092-60001 - HP 16-Channel Direct Connect MUX board for the HP-PB I/O Board Slot
SKU: J2092-60001
Price: $194.99
684897-001 - HP 3-Slot PCI-Express Riser Board for ProLiant DL380e G8 Server
SKU: 684897-001
Price: $71.58
647402-001 - HP 3-Slot PCI-Express Riser Board for ProLiant DL380e G8 Server
SKU: 647402-001
Price: $71.58
328703-001 - HP / Compaq ProLiant 5500 / 6500 Edo 16-Slot Memory Buffer Board
SKU: 328703-001
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.