ITEM NAME:For Arduino / Genuino UNO R3 Sensor Shield V5.0 Extension Board E3B3 A6W7 For Arduino / Genuino UNO R3 Sensor Shield V5.0 Extension Board E3B3 A6W7 Compatible Type: Arduino UNO (Genuino UNO) Shields Extension Ports: IIC, Bluetooth, SD Cards, APC220 Radio, Supersonic, 12864 Parallel, Serial Ports Dimensions: 68.6 x 53.4mm (2.7 x 2.1 inch) Weight: 25g (0.88 oz) 100% Brand New Item Shields are boards that can be plugged on top of the for Arduino PCB extending its capabilities. Easy to mount Package Contents: 1 x Sensor Shield V5.0 Extension Board E3B3 Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.