Massdrop offers the CEntrance DACport Slim for $99.99 with free shipping. That's tied with our July mention at $50 off list and the lowest total price we could find. This digital-to-analog converter and headphone amp supports files up to 24-bit/192kHz and features asynchronous USB, a 20Hz to 40kHz frequency response, direct class-A headphone amplifier, and 20dB analog gain switch. It comes with a 3-foot USB cable. Deal ends January 17.

The expected shipping date is January 27.