Xbox:Modding Hardware List

Stores
Chimeric Systems (sold by Kekule) - Modding tools, parts, accessories

Console5 - Parts and accessories

MakeMHz - Modding parts, repair parts

Digikey - Electronic components

Mouser - Electronic components

Services
128MB RAM Upgrade

Redherring’s Mod and Repair Services

Castlemania's list of recommended service providers for mods and repairs

Softmod Supplies
Compatible USB Flash Drive (Canadian Amazon)

USB Cable Adapter (for Game Save Exploit softmods) (Amazon)

USB Adapter for Controllers + Power Button

Hardmod Supplies
OpenXenium (sold by /u/KingLuxor)

LPC Rebuild Board for Modchips

OpenXenium (MakeMHz)

LPC Rebuild Board (MakeMHz)

Conductive Paint Pen for TSOPs

Upgrade Accessories
HDMI Video Adapter (Chimeric Systems)

XboxHDMI (fully digital video output) (MakeMHz)

StarTech IDE-SATA Adapter (US Amazon)

StarTech IDE-SATA Adapter (Canadian Amazon)

80-Wire IDE Cable (Chimeric Systems)

Custom Jewel (Chimeric Systems)

LED Jewel Light (Chimeric Systems)

RAM for 128MB RAM Upgrade (eBay)

Controller Accessories
OGX360 (on hold due to chip shortage)

OGX360 Full Set

Replacement Breakaway Cable (Amazon)

Controller Extension Cable (Amazon)

Repair Parts
DVD Drive Belt Replacement (Console5)

Full Capacitor Kits (Console5)

CPU Capacitor Replacement Kit (Chimeric Systems)

3D Printed Feet (Chimeric Systems)

Replacement Rubber Feet (Console5)

Other
AV Connector for DIY Component/RGB Cables (Console5)

The Black Art of Xbox Mods by Jonathan Harbour - A now-dated book of Xbox mods from 2004.