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. |
California Prop 65 Warning: |
WARNING: This product can expose you to chemicals including lead and lead compounds, and DEHP (a phthalate), which are known to the State of California to cause cancer and birth defects or other reproductive harm. Go to P65Warnings.ca.gov |