1.perfectly seamless with the interface, PCM DSD switch without defects2.can be AC DC power supply, easy to use3.ES9038Q2M parameters are relatively perfect, 129dB DNR -120dB +N is not comparable to the old chip4.Board size 75 x 90mm for easy installationBasic parameters:DLHiFi ES9038Q2M I2S IISVoltage: DC 9-15V (standard DC 5.5 x 2.1 carrier)PCB size: 75 x 90MMOutput terminal: RCA+3.5 terminal, can be directly connected amplifier, amp, headsetInput support:I2S/DSD: 32bit 384k/DSD64, DSD128, DSD256Coaxial fiber: 44.1k-192k/DSD64Material: PC+metalcolour: As shownPackage Contents:1 x Digital Audio DAC Decoder BoardOnly 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.