Included Prototype PCB, Terminal Blocks, Female Header Sockets. Made up of screw terminal block, high quality PCB carrier, FR-4 glass fiber PCB. Terminal Module is made of high quality material and by delicate workmanship treatment. Fine workmanship and good performance. Easy to use. in use. PCB: new PCB Size: . 120.24x77.2mm Pads Grid / Pitch: . 2.54mm Hole Diameter: . 0.8mm Terminal Block Pitch: . 3.5mm Hole Diameter: . 1.2mm Terminal Block: new Pitch: 3.5mm / 0.138inch mini terminal blocks, total 84 pins(3pole x24pcs, 2pole x6pcs). Wire range: 26~16AWG, strip length 5mm, screws M2 steel, pin header and cage brass. Female Header Socket: new Pitch: . 2.54mm Pin length: . 15mm Single row 10pin (1pc), single row 8pin (5pcs), dual row 18pin (1pc) size:120x24x77mm Material:ABS colour:Green Package Contents: 1 x expanding board Only the above package content, other products are not included. Note: Light 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.