For Arduino MEGA2560 R3 Prototype Screw Terminal Shield Board Kit Includes prototype PCB, terminal blocks, and female sockets. The terminal module is made of high-quality materials with fine workmanship and durability. It consists of a screw terminal block, PCB carrier, and FR-4 glass fiber PCB. Durable and practical design. Specifications: Junction Box: Pitch: 3.5mm mini terminal block, total of 84 pins (3 pole x 24, 2 pole x 6) Wire range: 26~16AWG, strip length 5mm, screw M2 steel, pin head and cage brass PCB: Pad mesh/spacing: 2.54mm, hole diameter: 0.8mm (approx.) Terminal block spacing: 3.5mm, hole diameter: 1.2mm (approx.) Female socket: Pitch: 2.54mm, pin length: 15mm (approx.) Quantity: Single row 10pin x1, single row 8pin x5, double row 18pin x1 Color: Green Material: PCB Size: 13x7cm Package Contents: 1 x Terminal Block Shield Board Note: Light shooting and different displays may cause slight color variation between the item in the picture and the actual item. Measurement may vary by +/- 1-3cm.