Personal Computer: SunFouder 2 pcs Ultrasonic Module HC-SR04 Distance Sensor for Arduino UNO MEGA R3 Mega2560 Duemilanove Nano Robot XBee ZigBee - SunFounder

Car Audio or Theater: SainSmart LCD Module For Arduino 20 X 4, PCB Board, White On Blue - SainStore Inc.

Car Audio or Theater: SainSmart 1.8" TFT Color LCD Display Module with SPI Interface & MicroSD for Arduino UNO MEGA R3 - SainStore Inc.

Car Audio or Theater: SainSmart HMC5883L Digital Compass Module 3 Axis Magnetoresistive Sensor for Arduino UNO MEGA R3 Mega2560 Duemilanove Nano Robot - SainStore Inc.

Car Audio or Theater: SainSmart HC-SR04 Ranging Detector Mod Distance Sensor (Blue) - SainStore Inc.

Car Audio or Theater: SainSmart 13.56MHz RFID Mini Module Kits KeyCard ID Card for Arduino UNO Mega 2560 R3 Nano AVR Raspberry Pi - SainStore Inc.

Personal Computer: SunFounder 12 Modules Arduino Sensor Kit for Arduino UNO R3 Mega2560 Mega328 Nano - SunFounder

BISS: SainSmart IIC/I2C/TWI 1602 Serial LCD Module Display for Arduino UNO MEGA R3 *Blue on White* - SainSmart

Video Games: Gamepads Two-axis Thumb Joystick Shield Module for Arduino UNO Mega1280 Mega2560 - Emgreat

BISS: Generic DHT11 Temperature and Humidity Sensor Module for Arduino UNO MEGA 2560 AVR PIC - PhiShine

CE: Generic Chainable 3 Color RGB Full Color Mist LED Module for Arduino UNO MEGA AVR PIC - PhiShine

Single Detail Page Misc: Quad-band GPRS/GSM Shield for Arduino Mega (GSM Module Included) - LinkSprite

Car Audio or Theater: SainSmart IIC/I2C/TWI Serial 2004 20x4 LCD Module Shield For Arduino UNO MEGA R3 - SainStore Inc.

PC Accessory: aFirst Soil Moisture Sensor Ground Humidity Sensor Module - aFirst

Car Audio or Theater: SainSmart IIC/I2C/TWI Serial 2004 20x4 LCD Module Shield For Arduino UNO MEGA R3 - SainStore Inc.

CE: BARGAIN!!! SIM900 GSM/GPRS Shield Quad-Band Wireless Module Development Board for Arduino in Consumer Electronics, Gadgets - Generic

Personal Computer: SainSmart 12864 128x64 Graphic Blue LCD Display Module Backlight For Arduino UNO R3 Duemilanove MEGA2560 MEGA1280 AVR - SainSmart

Home Improvement: RioRand (TM) IIC/I2C/TWI Serial 2004 20x4 LCD Module Shield For Arduino UNO MEGA R3 - RioRand

BISS: Generic 3D Printer Ramps Reprap Exaltation Kit Shield Modules for Arduino DIY - SoaringE

Musical Instruments: easygoal-16 x 2 LCD Keypad Shield for Arduino Uno Mega Duemilanove

The above is "Module Arduino Mega 2560 - Arduino Mega Bluetooth Module - Arduino Mega Module" recommended related products, Please click on the picture to see product details and arduino mega module reviews!