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Diamond IO DIO-100 Rev C 8-Bit ISA Serial Parallel I/O Card DB25 DB9 RS-232

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SKU:
41059
MPN:
DIO-100
Condition:
Used
Availability:
Usually ships within 1–2 business days.
Weight:
1.00 LBS
Shipping:
Calculated at Checkout
  • Diamond IO DIO-100 Rev C 8-bit ISA serial parallel I/O card — component side showing ICs including NS16450N UART and MC1489AF chips, with DB25 and DB9 bracket connectors at right
  • Diamond IO DIO-100 Rev C ISA card — solder side with yellow asset tag B069192 visible, DB25 and DB9 connectors visible at left edge
  • Diamond IO DIO-100 Rev C close-up of PCB silkscreen label and ISA edge connector gold fingers, with Lattice PLHS18P8AN IC visible
  • Diamond IO DIO-100 Rev C ISA card bracket edge showing DB25 parallel port and DB9 serial port connectors
$25.00
Was: $50.00
Current Stock: 1

Sold Out

Description

Diamond IO DIO-100 Rev C 8-Bit ISA Serial Parallel I/O Card DB25 DB9 RS-232

This is an 8-bit ISA expansion card that adds serial and parallel I/O connectivity to legacy IBM PC/XT and compatible systems. The card provides one RS-232 serial port and one parallel port via standard connectors.

Specifications & What's Included

  • Model: DIO-100 Rev C
  • Bus Interface: 8-bit ISA
  • Form Factor: Half-length ISA card
  • Ports: 1x DB25 parallel, 1x DB9 serial (RS-232)
  • Manufactured: Taiwan
  • Board only

Applications

The DIO-100 was used in IBM PC/XT and compatible systems from the 1980s-1990s to expand I/O capabilities for printers, modems, and other serial/parallel devices. This card type is typically found in industrial control systems, telecommunications equipment, and legacy business computers requiring additional connectivity ports. It functions as a straightforward I/O multiplier for systems with limited onboard serial and parallel resources.

Condition: Used
This Diamond IO DIO-100 Rev C 8-bit ISA serial/parallel I/O card has been inspected and is in good condition. The PCB is clean with no apparent damage, cracked traces, or missing components. The DB25 and DB9 bracket connectors appear intact with no bent or missing pins. The gold ISA edge connector fingers show light oxidation typical of age but no heavy corrosion. Normal shelf wear is present consistent with a used legacy card. Please view our photo set and contact us if you have any questions.
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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:
Diamond IO
Model:
DIO-100
MPN:
DIO-100
Type:
8-Bit ISA Serial/Parallel I/O Expansion Card
SKU:
41059
Revision:
Rev C
Bus Interface:
ISA (8-bit)
Form Factor:
Half-Length ISA Card
Serial Interface:
RS-232
Serial Connector:
DB9 (9-pin)
Parallel Connector:
DB25 (25-pin)
Number of Ports:
2 (1x DB25 parallel, 1x DB9 serial)
Compatible With:
IBM PC/XT and compatible 8-bit ISA systems
Country/Region of Manufacture:
Taiwan
Condition:
Used – Inspected
Seller Notes:
Board only. Inspected and in good condition.
Condition Notes:
Diamond IO DIO-100 Rev C 8-bit ISA I/O card. Inspected, in good condition. PCB clean, DB25 and DB9 connectors intact, ISA edge connector shows light age oxidation. Normal shelf wear.
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