1.-2560 R31 Prototype Screw Terminal Block Shield Board Kit For 2.Includes Prototype PCB, Terminal Blocks, Female Header Sockets 3.The Terminal Module Adopts High Quality Material, Fine Workmanship Treatment, To Use 4.Made Up Of Screw Terminal Block. Pcb Carrier And FR-4 Glass Fiber PCB 5.Not Assembled Yet.You Can Use Variety Ways To Mount,Flexible To Use, And Practical To Use Different Batches May Have Differences In Product Appearance, Color, And Printed Characters, Which Not Affect The Use Terminal Block: Pitch: 3. 5mm mini terminal blocks, total 84 pins (3pole x24pcs, 2polex6pcs) Wire range: 26inch16AWG, strip length 5mm, screws M2 steel, pin header and cage brass PCB: Pads grid /pitch: 2.54mm, hole diameter: 0.8mm (.) Terminal block pitch: 3.5mm, hole diameter: 1. 2mm (.) Dimension: 12.024x7.72cm (.) Female Header Socket: Pitch: 2.54mm, pin length: 15mm (.) Single row 10pin x1pcs, single row 8pin x 5pcs, dual row 18pin x1pcs Colour:As Shown Material:PCB Package Contents: 1 x Terminal Expansion Board (Finished Product) Only the above package content, other products are not included. Note: Light reflection 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.