The new version is now able to read and program also the so called “big block NANDs” which are the 256Mb and 512Mb mainboard versions if the Xbox360. In addition to the added support for big blocks the new version ads more quicksolder pads which means less cables are required. Cygnos360 V2 Ref F fits nicely onto the underside of the Xbox360 mainboards and connects to the Jtag port via quicksolders (no resistors or cables needed here) Take a look at the photo, you will see on the top right the new quicksolder pads that sit directly on the jtag port.)