Digitrend

Digitrend Systems 8021312 8-Bit ISA Controller Card DB9 DB25 Edge Connector

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SKU:
41020
MPN:
8021312
Condition:
Used
Availability:
Usually ships within 1-2 business days.
Weight:
1.00 LBS
Shipping:
Calculated at Checkout
  • Digitrend Systems 8021312 8-bit ISA controller card — top component side showing ICs, edge connector, and DB25 bracket connector
  • Digitrend Systems 8021312 ISA controller card — solder side with Digitrend Systems warranty label and dual DB bracket connectors visible
  • Digitrend Systems 8021312 warranty label closeup — reads DIGITREND SYSTEMS WARRANTY VOID IF REMOVED, part number 01-8021312 handwritten
  • Digitrend Systems 8021312 ISA controller card — angled front view showing DB9 and DB25 bracket connectors and component side
$25.00
Was: $50.00
Current Stock: 1

Sold Out

Description

Digitrend Systems 8021312 8-Bit ISA Controller Card DB9 DB25 Edge Connector

This is a Digitrend Systems 8021312 8-bit ISA controller card fitted with a full-length ISA edge connector and a dual-port bracket carrying one DB9 (9-pin) and one DB25 (25-pin) connector. The card is populated with numerous DIP ICs across its full length, consistent with a multi-function I/O or peripheral controller design of the ISA era. A Digitrend Systems warranty label on the reverse reads part number 01-8021312.

Specifications & What's Included

  • Manufacturer: Digitrend Systems
  • Part Number: 8021312 (label: 01-8021312)
  • Bus Interface: 8-bit ISA (Industry Standard Architecture) gold-finger edge connector
  • Card Length: Full-length ISA form factor
  • Bracket Connectors: DB9 (9-pin, likely serial) and DB25 (25-pin, likely parallel or serial)
  • PCB: Green, dual-sided, populated with multiple DIP ICs and passive components
  • Notable Components: Multiple DIP logic/controller ICs (markings partially legible); blue jumper block visible on component side
  • Condition: Sold AS-IS for parts or repair — not tested, functionality not guaranteed

Applications

The Digitrend Systems 8021312 is an 8-bit ISA expansion card from the era of IBM PC/XT and PC/AT compatible systems — roughly the mid-to-late 1980s, when the 8-bit ISA bus was the dominant expansion standard in personal computers before 16-bit ISA and later PCI took over. Cards of this type were used to add serial and parallel I/O ports, or to interface external peripherals and industrial devices, to PC-compatible systems via the ISA bus. The DB9 and DB25 connectors on the bracket suggest serial (RS-232) and parallel port functions, which were commonly used to connect printers, plotters, modems, and industrial instruments. Today, cards like this are primarily sought by collectors, vintage computer restorers, and technicians maintaining legacy IBM PC/XT/AT-era systems or industrial equipment that still depends on ISA-bus controllers. This card is offered as-is for parts or repair purposes.

Condition: Used
Digitrend Systems 8021312 8-bit ISA controller card in used condition. The PCB is clean and green with all ICs present and intact. Both the DB9 and DB25 bracket connectors are in good shape with no visible damage. This is a working card suitable for legacy system restoration or as a replacement component.
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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:
Digitrend Systems
Model:
8021312
MPN:
01-8021312
Type:
8-Bit ISA Controller Card
SKU:
41020
Bus Type:
ISA (8-bit)
Form Factor:
ISA Expansion Card
Connector 1:
DB9 (9-pin serial)
Connector 2:
DB25 (25-pin parallel)
Edge Connector:
8-bit ISA gold-finger edge connector
Condition:
As-Is / For Parts or Not Working
Seller Notes:
Sold AS-IS for parts or repair; no functionality guarantee
Country/Region of Manufacture:
United States
Condition Notes:
Used Digitrend Systems 8021312 8-bit ISA controller card. Clean PCB, all ICs present, DB9 and DB25 connectors intact. Working condition.
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