Description
Everex EV-817 MCA Tape Drive Host Adapter Controller Card PWA-00485-00
The Everex EV-817 is a Micro Channel Architecture (MCA) tape drive host adapter and controller card, identified by part number PWA-00485-00. It provides the interface between an MCA-bus host system and an external tape drive unit via a high-density 50-pin D-Sub connector on the bracket. The board is populated with multiple DIP and surface-mount ICs including Everex-branded controller chips, consistent with late-1980s tape backup controller design.
Specifications & What's Included
- Model: EV-817 (silkscreen marked "EV 817" on PCB)
- Part Number: PWA-00485-00 (silkscreen confirmed on PCB)
- Bus Interface: MCA (Micro Channel Architecture)
- External Connector: High-density 50-pin D-Sub on rear bracket
- Form Factor: Full-length MCA expansion card
- Bracket: Blue MCA-style mounting bracket installed
- Manufacturer: Everex (Everex-branded ICs visible on board)
- Included: Card only — no cables, software, or accessories
Applications
The Everex EV-817 was designed for use in IBM PS/2 and compatible systems equipped with the Micro Channel Architecture bus, IBM's proprietary expansion bus introduced in the late 1980s. MCA tape controller cards like the EV-817 connected to QIC or other tape drive formats to provide backup and archival storage for PS/2 workstations and servers. These cards are sought today primarily for maintaining or restoring legacy PS/2 MCA-bus systems, reading archival tapes created on period-correct equipment, or completing vintage PS/2 restorations. MCA expansion cards are not interchangeable with ISA or PCI systems and are specific to the MCA platform.
Please note: We may have multiple units of this item in stock. The unit you receive may vary slightly from the one shown in the photos. All units are functionally equivalent and inspected to the same standard.
This Everex EV-817 MCA Tape Drive Host Adapter / Controller Card (PWA-00485-00) has been inspected and appears to be in good used condition. The PCB shows typical light wear consistent with prior installation and use. The MCA edge connector contacts appear clean and the 50-pin D-Sub external connector is intact. No visible cracks, broken traces, or missing components were noted during inspection. This card has not been bench-tested at our facility. Please view our photo set and contact us if you have any questions.
Warranty Information
Additional Information
Brand: |
Everex |
Model: |
EV-817 |
MPN: |
PWA-00485-00 |
Type: |
MCA Tape Drive Host Adapter / Controller Card |
SKU: |
7539 |
Bus Interface: |
MCA (Micro Channel Architecture) |
Form Factor: |
MCA Expansion Card |
External Connector: |
High-Density D-Sub (50-pin) |
Compatible With: |
IBM PS/2 MCA-bus systems |
Condition: |
Used – Inspected |
Seller Notes: |
Card only; no cables or accessories included. |
Country/Region of Manufacture: |
United States |
Condition Notes: |
Everex EV-817 MCA Tape Drive Controller Card PWA-00485-00. Inspected; PCB and connectors appear in good used condition with typical wear. Not bench-tested. Card only — no cables included. |
