High Resolution Technologies MusicStreamer II+ Asynchronous USB powered DAC

This small asynchronous DAC does exactly what it is intended to do.  Allow your computer to play high resolution music - with excellent precision and clarity. I purchased this new in 2012 and used it for about a year, then as you all know, I felt the need to upgrade.  So this has not been used since 2013.  I updated the firmware to the latest version in 2015.  It works perfectly, definitely a plug and play DAC. It is in near new condition.  I will pay for shipping in the United States and PayPal fees.  Specifications 400mA USB-powered 24bit/96kHz device using asynchronous* (master mode) transfer protocol. It runs native Audio Class 1.1 drivers for instant plug 'n' play.. Full-scale output is 2.25Vrms. There's a 100Ω Z out, S/N ratio of 115dB (DC to 30kHz) or 120dB A-weighted and 200MΩ isolation between full-size USB input and RCA outputs. Measures  5.6 x 2.3 x 0.875". Sample-rate confirmation for 32, 44.1, 48, 88.2 and 96K via a cluster of small LEDs on the input side.