Item described conservatively, a very high demand/ value item in bad shape. Tested thoroughly and comprehensively on several systems. Buyer purchased for 7.50 and returned item and was given refund no questions asked. Item re-listed (173105622483) and sold for 22.50 with positive feedback. 1978ponta would not respond to inquiry and gave no reason in feedback. Reached out to buyer to help reconcile and he would not return correspondence. Very frustrating.