Dell PWB 40518 Rev G00 ISA Riser Card 94V-0 HAFD 3791 Server Desktop Board

Dell PWB 40518 Rev G00 ISA Riser Card 94V-0 HAFD 3791 Server Desktop Board

The Dell PWB 40518 is an ISA riser card designed to extend ISA expansion slots at a right angle from the motherboard, allowing full-length ISA add-in cards to fit within space-constrained Dell desktop and tower chassis. Revision G00 is printed on the PCB label alongside the HAFD 3791 date/lot code and a UL 94V-0 flammability rating.

Specifications & What's Included

• Manufacturer: Dell
• Part Number: PWB 40518
• Revision: G00
• PCB Lot/Date Code: HAFD 3791
• Flammability Rating: 94V-0
• Expansion Slots: Three ISA slots (visible on front face of card)
• Interface: ISA edge connector (gold-plated)
• Form Factor: Card/Module (riser card)
• Riser card only — no additional accessories included

Applications

ISA riser cards like the PWB 40518 are used in Dell desktop and small-form-factor systems where the motherboard ISA slot is oriented parallel to the chassis floor, requiring a riser to redirect the slot so that ISA expansion cards mount vertically. The ISA (Industry Standard Architecture) bus was the dominant expansion standard in IBM-compatible PCs from the mid-1980s through the mid-1990s, and Dell used ISA riser cards in a range of Dimension, OptiPlex, and server-class systems of that era. Today these cards are primarily sought as replacement parts for legacy Dell systems still in service in industrial control, point-of-sale, and specialized embedded environments where ISA peripherals remain in use.