Optimus Prime's Stereo Equipment Old School Audio - Old School Prices - Professionally Tested Product Description The TASCAM US-144 is a USB 2.0 audio and MIDI interface offering 4-in/4-out operation at up to 24-bit/96kHz resolution. This unit has been bench-tested and confirmed fully working, with all inputs, outputs, and controls verified. Cosmetic condition is excellent — the unit presents very cleanly and shows no meaningful signs of use. Please review all photos for details. Highlights At A Glance ✔ Fully tested and verified ✔ Excellent cosmetic condition — very clean unit ✔ Free 30-day returns ✔ Fast, insured shipping Testing & Verification All analog inputs were tested, including both XLR mic inputs (with phantom power confirmed active), line inputs, and the guitar input on the right channel. All output paths were verified, including line outputs and the headphone output. USB audio and MIDI connectivity, all front-panel knobs (Input, Mon Mix, Computer, Line Out, and Phones level controls), the mono switch, and per-channel signal/overload indicators were all confirmed functional. Shipping & Returns Fast, insured shipping from Minnesota. Free 30-day returns. Item is carefully packaged for safe delivery.