// Retro Vintage Connectors

VESA Local Bus Connector

VESA Local Bus (VL-Bus) is a 32-bit extension of the ISA bus running at CPU speed (25-40 MHz) for video cards in 486-era PCs, using a 116-pin connector that extends beyond the ISA slot.

// Specifications

Standard

VESA VL-Bus 2.0

Data Bus

32-bit

Speed

33 MHz or 40 MHz at CPU speed

Status

Obsolete replaced by PCI

Pin Count

116 (ISA 98 + 18 extension)

Use Case

486 era VGA cards disk controllers

// Pin Reference Table

Pin	Name	Function	Type
1	D0	Data bus bit 0	I/O
2	D1	Data bus bit 1	I/O
32	D31	Data bus bit 31	I/O
33	A0	Address bit 0	I/O
34	A31	Address bit 31	I/O
101	+5V	5V power	PWR
102	GND	Ground	GND