This is a Vector Electronics 3690-22 printed circuit board that brings out a base board connector so that devices can be tested with easy access to the data and control lines and the device itself.

Specifications at time of fabrication:

Length : 5.7"

Tongue Height : 3.2"

Contacts : 31 each Side, 0.100" Centers with Test Points for mounting probes on each connector line

Current Rating : 5 amps at 10°F Rise

Voltage Rating : 200 RMS or 300 VDC

Receptacle Contacts : Ni / Gold Plated

Material : FR4 Epoxy Glass, 2oz. Copper

NEMA Grade : FR4

UL Flammability Class : 94V - 0

There are 62 signals, 31 on each side.

The aluminum bracket is for mounting the extender to a slot in a 16-bit ISA bus system, such as an original IBM or compatible PC, and possibly other non-PC systems