This is a ESP32 S3 DIN Rail expansion board, which leads out all the IO ports.Terminal spacing: 3.96mm.Terminal Blocks: Wire Range 26-16AWG, Strip Length 3.96mm, Metric M2/M2.5 Slotted Screws.Size: 80 *58 * 9mm(only Board),95 *61 * 35mm(with Rail Box)Weight: 41g(only Board),96g(with Rail Box)Lead out all pins(Except RST pin)3.96MM terminal blockStandard DIN35 C45 Rail housingSupports two widths of ESP32-S3 boards:25.4MM & 28MMUse:DIN Rail Mount Screw Terminal Adapter Module for ESP32 S3 Board.With this adapter modules, you can easily extend your ESP32 projects to industrial control applications.Notice:1 This product does not include the ESP32 S3 Board2 Please use 44PIN ESP32 S3,Pin width 25.4MM (Board width about 28MM)DIN rail Box parameters:Product model: UM80Color:GreenWidth: suitable for PCB board width UM80(80mm)Insulation grade: flame-retardant VO gradeBackplane length: suitable for 58 mm PCB boardsNet weight: 55gInstallation: DIN35 and C45 rail