Topping D10 USB DAC and USB SPDIF Converter Review - HomeTheaterHifi.com
Review: TOPPING D10s DAC – Top(ping) Tier Performance on a Budget - Headphonesty
Topping D10B Balanced USB DAC Digital to Analog Converter Automatic On/Off with USB Source(Topping D10B, Black/Silver): Amazon.com: Industrial & Scientific
TOPPING D10 Balanced USB DAC — HiFiGo
Archimago's Musings: MEASUREMENTS: Topping D10s - an inexpensive high performance basic USB DAC with S/PDIF outs. And on "perceptibly perfect" DACs.