TOPPING DX3 Pro+ Desktop DAC & Headphone amplifier low Noise NFCA Bluetooth5.0 for Home and Compute (Black) - Walmart.com
Amazon.com: Topping MX5 DAC Class D Amp 70Wx2 NFCA Headphone Amplifier 1600mWx2 USB/Opt/Coax/BT/TRS/RCA in Desktop Decoder Power Amp 384kHz/DSD256 with Remote Control (Silver) : Electronics
Archimago's Musings: MEASUREMENTS: Topping D10s - an inexpensive high performance basic USB DAC with S/PDIF outs. And on "perceptibly perfect" DACs.