The are two choice : 1. one choice "for power part " is suitable for for the following mode of digital control power supply : DPS5015, DPS5020, DPS3012, DPH3205 2. other choice "not for power part "is suitable for the following mode of digital control power supply : DPS3003, DPS3005, DPS5005, DP30V5A, DP50V5A,DP30V3A, DP20V2A ,DP50V2A Note: there is no open for communication interface on housing , it need you add a open on the housing , if you can'for t do this , please don'for t buy this housiing for communication version Description: brand new and high quality. Type: With Power Part/ Without Power 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 contact us. 2. The for shell is made of cold-roll steel sheets. Please be careful in for case that it is scratched by for sharp objects or damaged by direct sunlight and humid environment. 3. Please connect the anode and the cathode correctly to prevent short circuit in assembly. 4. Do not connect the circuit while the power is on. 5. Try to avoid shaking and falling Note: 1.Item color displayed in photos may be showing slightly different on your computer monitor since monitors are not calibrated same. 2.Please allow 1-3mm slight deviation due to manual measurement. Thank you! Package includes: 1 x Power Supply for Shell