SKU: OT3262 Article number: AA639 EAN: 8720618231475
This Optocoupler board is equipped with 4 PC817X optocouplers. For an explanation of how optocouplers work exactly, we recommend watching the video with this product (English).
The jumper connects the minus/GND planes for a Common Ground. To achieve complete isolation, the jumper should be removed.

Voltage input (IN1-IN4): 3.6-24V
Voltage output (V1-V4): 3.6-30V
Maximum power per output: 150mW
Maximum switching frequency: 4kHz
Max. output current: 10mA
Download the datasheet of the PC817X optocoupler here
Dimensions
Length: 4.71cm
Width: 3.8cm
Height: 1.2cm