Features: The part uses ES9018K2M decoding, which supports 32bit/384kHz with excellent dynamic DNR: 127dB; low distortion THD+N 120dB USB adopts a decoding chip, with a most support of 24bit 96kHz Built with premium metal casing for electromagnetic interferences resistance and long lasting durability, this plugs and play USB decoders not requires driver for instantly connectivity across devices. Multiple LDOs are used to avoid interferences between different circuits, and ground wire digital analog separation is used to reduce interferences op amps part is powered by positive and negatives voltages, and 3 op amps are used. Two (TI NE5532) are responsible for I/V conversion and LPF. 1(TI TL072) is responsible for differential single-ended, the bottom of op amps. The installation of socket not only ensures good contact, but also facilitates the replacement of different styles of op amps by fans. Specifications: Component:Metal Size:Approx.78x51x21mm/3.07x2x0.82inch Input: USB Power port Chip:ES9018K2M Product size: Length 78mm x width 51mm x height 21mm Package Includes: 1pc USB decoders note: Please allow 1-3cm errors due to manual measurement. Due to the differences between different monitors, the picture may not reflect the actual item color.