Can the programmer be used in Win7 ?AVR studio V4.19, v5, and v6.1 can all be used in Win7 . The USB to serial port of this programmer also supports Win7, so the programmer can be used in Win7 environment. Can the programmer be used in Win10 ?AVR studio V4.19 and v5, v6.2, V7.0 can all be used under Win10 . The USB to serial port of this programmer also supports Win10, so the programmer can be used in Win10 environment. How to deal with unsupported devices during the use of the programmer?This programmer supports the same ISP programming function as the stk500 kit, and has been fully tested for AVR commonly used chips. When the programmer performs ISP programming, what is the reason for the error in entering the programming mode?First, reduce the ISP programming clock to 56K and read the chip ID. If the error is still reported, it is usually because the fuse bit of the chip is misconfigured, resulting in ISP mode not working properly. Please replace a new chip on the target and then perform ISP function test. Due to different batches, there may be differences in product appearance, color, and printed text, which will not affect the use. Colour:Random Color, don't accept the specified color Material:plastic Package Contents: 1 x Downloader Kit Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.