Description
Adaptec AHA-2940U2W Ultra2 Wide SCSI PCI Controller Card 916506-01
The Adaptec AHA-2940U2W is an Ultra2 Wide SCSI host adapter for the PCI bus, providing LVD (Low Voltage Differential) and Single-Ended (SE) SCSI connectivity for servers and workstations. It supports Ultra2 Wide SCSI data transfer rates of up to 80 MB/s on the LVD bus and includes Adaptec's AutoTerm automatic termination, which detects and sets SCSI bus termination without manual jumper configuration. An onboard SCSI BIOS allows the host system to boot from attached SCSI devices without requiring a separate driver during POST.
Specifications & What's Included
- Manufacturer: Adaptec
- Model: AHA-2940U2W (also referenced as AHA-2940S76)
- Part Number (MPN): 916506-01
- SCSI Standard: Ultra2 Wide SCSI — supports LVD and SE modes
- Bus Interface: PCI (full-height card)
- External Connector: 68-pin VHDCI (HD68) — visible on bracket
- Internal Connector: 68-pin Wide SCSI header (on-board)
- Max Data Transfer Rate: Up to 80 MB/s (LVD mode)
- AutoTerm: Yes — automatic SCSI bus termination
- Onboard SCSI BIOS: Yes — supports bootable SCSI devices
- Main Controller IC: Adaptec SCSI controller (large center IC, label not fully legible in photos)
- FCC ID: FGTAHA29HC (visible on PCB reverse)
- CE Mark: Yes (visible on PCB reverse)
- Included: Card only — no cables or accessories
Applications
The AHA-2940U2W was a high-performance SCSI host adapter widely used in late-1990s and early-2000s servers, workstations, and storage arrays. Ultra2 Wide SCSI (LVD) doubled the maximum bus speed over its Ultra Wide predecessor — from 40 MB/s to 80 MB/s — and significantly extended the maximum cable length to 12 meters on an all-LVD bus, making it well suited for rackmount storage environments with multiple SCSI hard drives or tape libraries. The card was commonly deployed in systems running Windows NT/2000, Novell NetWare, and various Unix/Linux distributions of that era. Today these cards are sought for legacy server maintenance, industrial systems still running SCSI storage, and retrocomputing builds that require reliable PCI SCSI connectivity. The AutoTerm feature made it particularly popular in data centers where manual jumper termination was error-prone.
This Adaptec AHA-2940U2W Ultra2 Wide SCSI PCI Controller Card has been inspected and is in good used condition. It was pulled from a working environment where it was in active use. The card shows normal light wear consistent with prior installation — the PCB and components are clean, and the bracket and connector appear intact with no visible damage. Please view our photo set and contact us if you have any questions. Please note: We have multiple units in stock — yours may not be the one shown in the photos, however, it will be similar in condition and function.
Warranty Information
Additional Information
Brand: |
Adaptec |
Model: |
AHA-2940U2W |
MPN: |
916506-01 |
Secondary Model: |
AHA-2940S76 |
Type: |
Ultra2 Wide SCSI PCI Controller Card |
SKU: |
17551 |
Interface: |
PCI |
SCSI Type: |
Ultra2 Wide SCSI (LVD/SE) |
External Connector: |
68-pin VHDCI (HD68) |
Internal Connector: |
68-pin Wide SCSI |
Bus Type: |
PCI |
AutoTerm: |
Yes — Automatic Termination (AutoTerm) |
BIOS: |
Onboard SCSI BIOS |
Form Factor: |
Full-Height PCI Card |
Condition: |
Used – Pulled from Working Environment |
Country/Region of Manufacture: |
United States |
Compatible With: |
PCI-equipped servers, workstations, PCs |
Seller Notes: |
Card only; pulled from a working environment |
Condition Notes: |
Adaptec AHA-2940U2W Ultra2 Wide SCSI PCI Controller (916506-01). Inspected, in good used condition. Pulled from a working environment where it was in active use. Normal light wear. No visible damage. |