Hi Steve, sorry I was not specific, I have Xeltek Rommaster II this device supports all major eproms, e2proms, flash, and logic test. I emailed them and they told me that this product is no longer supported and the adaptor they made for 40 pin MCU, was unrealiable and no longer sold. I was wondering if someone at the forum, has this adaptor, just to check if it works.Thanks Steve.