Description
MFX MF/FD 6X00852 8-Bit ISA Long Serial Memory Controller Card DB25 DB9
This is an 8-bit ISA serial memory and controller card designed for vintage IBM PC/XT and compatible systems. The card features a Texas Instruments TBP28L22N controller IC and provides both DB25 and DB9 serial connectors for system integration.
Specifications & What's Included
- Brand: MFX | Model: MF/FD | MPN: 6X00852
- Bus Interface: 8-Bit ISA (Long Card form factor)
- Connectors: DB25 (25-pin) and DB9 (9-pin serial)
- Controller IC: Texas Instruments TBP28L22N
- PCB Revision: REV D
- Manufactured in United States
- Card only; no accessories included
Applications
Memory and serial controller cards were used in vintage IBM PC/XT systems to add or manage serial communications and memory expansion. These cards are compatible with 8-bit ISA slot systems from the 1980s and early 1990s. They typically served industrial, telecom, and general computing applications requiring additional serial ports or memory management capabilities.
Condition: For Parts or Not Working
This MFX MF/FD 6X00852 8-bit ISA serial memory and controller card is being sold as-is for parts or repair. Due to its age, functionality cannot be guaranteed and it has not been tested. The board appears visually clean with no obvious physical damage — no broken traces, burnt components, or missing chips visible. The bracket connectors (DB25 and DB9) look intact. Normal aging and storage wear consistent with vintage ISA-era hardware. 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.
This MFX MF/FD 6X00852 8-bit ISA serial memory and controller card is being sold as-is for parts or repair. Due to its age, functionality cannot be guaranteed and it has not been tested. The board appears visually clean with no obvious physical damage — no broken traces, burnt components, or missing chips visible. The bracket connectors (DB25 and DB9) look intact. Normal aging and storage wear consistent with vintage ISA-era hardware. 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
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: |
MFX |
Model: |
MF/FD |
MPN: |
6X00852 |
Type: |
8-Bit ISA Serial Memory and Controller Card |
SKU: |
27705 |
Bus Interface: |
8-Bit ISA |
Form Factor: |
ISA Long Card |
Connector 1: |
DB25 (25-pin parallel/serial) |
Connector 2: |
DB9 (9-pin serial) |
Controller IC: |
Texas Instruments TBP28L22N (visible on board) |
Board Label: |
MF/FD, REV D (visible on PCB) |
Condition: |
As-Is / For Parts or Not Working |
Seller Notes: |
Sold as-is. Card only, no accessories included. |
Compatible With: |
Vintage IBM PC/XT and compatible 8-bit ISA systems |
Country/Region of Manufacture: |
United States |
Condition Notes: |
MFX MF/FD 6X00852 8-bit ISA serial memory controller card sold as-is for parts or repair. Not tested; functionality not guaranteed. Board appears visually intact with no obvious damage. Please contact us with any questions. |
