DELL Audio IO Board Cable UM356 for Inspiron 1520 1521 Vostro 1500

Dell UM356 Audio IO Board Cable

This genuine Dell OEM cable connects the audio ports IO board and wireless switch to the mainboard in compatible laptops. It is intended for owners of Dell Inspiron 1520, Inspiron 1521, or Vostro 1500 models who need to replace a damaged or missing internal cable. The part number is UM356. Buyers who need cables for other Dell series or different laptop brands cannot use this part.

Verify Laptop Model and Connector Layout

Before ordering, confirm that your laptop is exactly an Inspiron 1520, Inspiron 1521, or Vostro 1500. Check the existing cable routing and connector orientation against the product images to ensure the replacement matches your mainboard and IO board headers. This cable is a working pull, so inspect the pins for any bent contacts before installation. Builders working on other chassis or motherboard revisions should not purchase this cable.

Cable Only — No Additional Hardware

The package contains only the UM356 audio IO board cable as pictured; no screws, brackets, thermal pads, or software are included. Installation requires reusing the original fasteners and following the laptop service manual for disassembly and reassembly steps. The cable restores the connection between the audio board, wireless switch, and mainboard without adding any new functionality. Users expecting mounting hardware or driver discs will need to source those separately.