Description
IBM 56X4927 3270 Coax Network Card ISA 8-Bit PC Adapter 5250 Terminal Legacy
ISA expansion card for connecting IBM PC/XT/AT computers to IBM 3270 coaxial terminal networks. Enables legacy mainframe connectivity via coax protocol.
Specifications & What's Included
- Model: IBM 56X4927 (EC A26949)
- Bus Interface: ISA 8-bit
- Connector: Coaxial (BNC-style)
- Protocol: IBM 3270 Coax
- Compatible with IBM PC/XT/AT and compatibles with 8-bit ISA slot
- Card only; no cables or software included
Applications
This adapter card connected IBM personal computers to 3270 coaxial terminal networks and IBM mainframe environments. Used in legacy data center and enterprise computing setups where PC-to-mainframe terminal emulation was required. Supported 5250 terminal protocol environments in addition to 3270 networks. Commonly deployed in financial institutions, government, and large corporate IT infrastructures running mainframe systems.
Condition: Used
This IBM 56X4927 3270 Coax ISA Network Adapter Card has been inspected and is in good used condition. It was pulled from a working environment where it was in use and functional. The PCB is clean with no visible damage, cracked traces, or missing components. The BNC-style coax connector on the bracket is intact. Normal light handling wear is present on the card and bracket. Please view our photos and contact us with 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.
This IBM 56X4927 3270 Coax ISA Network Adapter Card has been inspected and is in good used condition. It was pulled from a working environment where it was in use and functional. The PCB is clean with no visible damage, cracked traces, or missing components. The BNC-style coax connector on the bracket is intact. Normal light handling wear is present on the card and bracket. Please view our photos and contact us with 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
We stand behind every item we sell with a 30-day money-back guarantee. If your item arrives not as described, you may return it within 30 days for a full refund. Please inspect your purchase upon arrival and contact us with any questions.
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Additional Information
Brand: |
IBM |
Model: |
56X4927 |
MPN: |
56X4927 |
Secondary Model: |
56X4927 ASP |
EC Number: |
EC A26949 |
Type: |
3270 Coaxial Network Adapter Card |
Bus Interface: |
ISA 8-Bit |
Connector Type: |
Coaxial (BNC-style) |
Network Protocol: |
IBM 3270 Coax |
Form Factor: |
ISA Expansion Card |
Compatible With: |
IBM PC/XT/AT and compatibles with 8-bit ISA slot |
Compatible With 2: |
IBM 3270 terminal networks, IBM mainframe coax environments |
Country/Region of Manufacture: |
Yugoslavia (MFG LOC YU) |
Condition: |
Used – Pulled from Working Environment |
SKU: |
20706 |
Seller Notes: |
Card only; no software or cables included. |
Condition Notes: |
IBM 56X4927 3270 Coax ISA 8-bit network card. Inspected, in good used condition. Pulled from a working environment where it was in use and functional. PCB clean, BNC connector intact. Card only, no cables or software. |
