Mega protoshield for Arduino : ID 192 : $14.95 : Adafruit Industries, Unique & fun DIY electronics and kits

The Arduino Prototyping Shield makes it easy for you to design custom circuits. You can solder parts to the prototyping area to create your project,or

Arduino Mega Proto Shield Rev3 (PCB)

Adafruit Grand Central M4 Express featuring SAMD51 [Without Headers] : ID 4084 : $29.95 : Adafruit Industries, Unique & fun DIY electronics and kits

Arduino Mega Proto Shield Rev3 (PCB) — Arduino Online Shop

Arduino, Shields Products Category on Adafruit Industries

Mega protoshield for Arduino : ID 192 : $14.95 : Adafruit Industries, Unique & fun DIY electronics and kits

Adafruit Metro 328 Starter Pack : ID 68 : $44.95 : Adafruit Industries, Unique & fun DIY electronics and kits

DIN Rail Terminal Block Adapter to Grand Central or Arduino Mega : ID 4555 : $44.95 : Adafruit Industries, Unique & fun DIY electronics and kits

Catalog Adafruit Electronica

Arduino, Shields Products Category on Adafruit Industries

Works with the Uno! This prototyping shield is the best out there (well, we think so, at least). It works with UNO, NG, Diecimila and Duemilanove

Adafruit Proto Shield for Arduino Kit

It works with UNO, Mega, Leonardo, NG, Diecimila, Duemilanove, and compatible Arduinos. Yun's and Arduino Ethernets have a chunky Ethernet jack that gets in the way of stacking, you can use the stacking headers included and it will work, just doesn't sit nice and flat.

Adafruit Proto Shield for Arduino Unassembled Kit - Stackable ADA2077

It works with UNO, Mega, Leonardo, NG, Diecimila, Duemilanove, and compatible Arduinos. Yun's and Arduino Ethernets have a chunky Ethernet jack that gets in the way of stacking, you can use the stacking headers included and it will work, just doesn't sit nice and flat.

Adafruit Proto Shield for Arduino Unassembled Kit - Stackable ADA2077

Adafruit Proto Shield for Arduino Unassembled Kit - Stackable [Version R3] : ID 2077 : $9.95 : Adafruit Industries, Unique & fun DIY electronics and kits