Alesis MultiMix 4 USB FX 4-Channel Mixer - inMusic Store
G-mark Ptm4 Mini 4 Channel Portable Bluetooth Audio Mixer Sound Board Dj Console With Usb Interface And High Headroom For Dj Events, Karaoke, And More : Target
Tascam US-4x4, 4X4 CHANNEL USB AUDIO INTERFACE, 4-in/4-out Audio/MIDI