* - Olimex AVR-ISP-MK2
* - Paranoid Studio's US2AX (V1, V2 and V3 hardware revisions)
* - PJRC Teensy (1.x and 2.x versions)
- * - Rickus' U2S
+ * - Rikus' U2S
* - Sparkfun U2 Breakout Board
* - Stange ISP Programmer Board
* - TCNISO Blackcat USB JTAG