ASUS Xonar E1 Essence One USB DAC, 2011, made in China

 

Link: ixbt | Owner's Manua; [PDF, en] | jimmyauw

Specifications
Output Signal-to-Noise Ratio (A-Weighted) (Front-out): 120 dB
Output THD+N at 1kHz (Front-out): 0.000316 %(-110 dB)
Frequency Response (-3dB, 24bit/192KHz input): 10 Hz to 48 KHz
Output/Input Full-Scale Voltage: Balanced Output : 4 Vrms ( Vp-p), Unbalanced Output : 2 Vrms ( Vp-p), Headphone : 7 Vrms ( Vp-p)
Audio Processor: C-Media CM6631 High-Definition Sound Processor
Analog Playback Sample Rate and Resolution: 44.1K/48K/88.2K/96K/176.4K/192KHz @ 16bit/24bit
S/PDIF Digital Input: 44.1K/48K/96K/192KHz @ 16bit/24bit
Analog Output Jack: 2 x 3.5mm RCA, 6.3mm, 2 x Balanced Output (XLR),
Input: 2 x Digital S/PDIF Input (1 x Coaxial, 1 x Toslink), 1 x USB
Dimensions: 261.33 x 230 x 60.65 mm ( L x W x H )