There are two choices: 1. One choice "for power supply" is suitable for the following mode of digital power control: DPS5015, DPS5020, DPS3012, DPH3205 2. Other "not for power part" choice is suitable for the following mode digital power control: DPS3003, DPS3005, DPS5005, DP30V5A, DP50V5A,DP30V3A, DP20V2A ,DP50V2A Note: there is no open communication interface on the enclosure, you need to add open on the enclosure, if you can't do it, please do not buy this house in communication version Description: . Type: With Power Part/Without Power Supply Part Size: 13x11.8x4.2cm/5.12x4.65x1.65inch Installation Precautions: 1. Please read this document carefully before installation. If you have any questions, please . 2. The shell is made of cold-rolled steel plates. Caution should be exercised in case it is scratched by sharp objects or damaged by direct sunlight and humid environment. 3. Please connect the anode and cathode correctly to prevent short circuit in assembly. 4. Do not connect the circuit when the power is on. 5. Try to avoid shaking and falling Note: 1. The color item displayed in the pictures may be showing slightly different when showing on the computer monitor since monitors are not calibrated same. 2. Please allow 1-3mm slight deviation due to manual measurement. Thank you! Package Included: 1 x Power Supply Case