Archived:APM 2.5 and 2.6 Overview — Copter documentation
APM 2.6 - Power Module Finally Working With New 6 Pin Connector - YouTube
Flight Controller Side Pin APM 2.8 Board For Multicopter ARDUPILOT 2.5/2.6/2.8 | eBay
Ardupilot APM 2.6 Wiring, MinumOSD, APM Telemetry Radio, Power Module - XUAV Mini Talon FPV Part 4 - YouTube
APM GPS connection | airhigh
Amazon.com: FPVDrone 3DR 500MW Radio Telemetry Kit 915Mhz Air and Ground Data Transmit Module for APM 2.6 APM 2.8 Pixhawk Flight Controller : Toys & Games
Archived:APM 2.5 and 2.6 Overview — Copter documentation
APM 2.8 Flight Controller Side Pin Board For Multicopter ARDUPILOT 2.5/2.6/2.8 | eBay
APM 2.6 Schematic - Discussions - diydrones
APM Quadcopter Setup : 4 Steps - Instructables
Arducopter Quickstart Guides and Tips - Arduino based Arducopter UAV, the open source multi-rotor
Archived:APM 2.5 and 2.6 Overview — Rover documentation