LA1010 USB Logic Analyzer 16 Input Channels 100MHz with The English PC Software Handheld Instrument,Support Windows (32bit/64bit),Mac OS,Linux: Amazon.com: Industrial & Scientific
International Test Instruments. ITIC 1480A USB 2.0 LS/FS/HS Protocol Analyzer
Beagle USB 12 - Low/Full Speed USB Protocol Analyzer : ID 708 : $495.00 : Adafruit Industries, Unique & fun DIY electronics and kits