LILYGO Expansion Cable

Overview

The LILYGO Expansion Cable is a connector accessory designed for the T4 S3 development board, enabling easier access to GPIO pins and peripheral connections. It is available in three variants to suit different prototyping setups:

• To 1.27mm Female (P356) — $5.20, connects to fine-pitch 1.27mm headers
• To 2.54mm Female (P357) — $5.20, connects to standard 2.54mm breadboard-compatible headers
• To 1.67mm Male Header (P358) — $2.10, provides male header breakout

These cables are particularly useful for engineers, students, and makers who need to bridge the T4 S3's connector interface to standard prototyping components without soldering directly to the board.