AT NESYNTH, WE HAVE BEEN PRIDING OURSELVES ON ONLY PROVIDING BRAND NEW, MADE-TO-ORDER EPROMS FROM BRAND NEW STOCK DIRECTLY FROM THE FACTORY. UNFORTUNATELY THE SILICON SHORTAGE HAS CAUSED THE MANAFACTURER OF THESE SORTS OF CHIPS TO CHANGE THEIR PRIORITIES AS THE NEEDED CHIP FOR THIS UNIT IS VERY SELDOM USED. WE HAVE MORE ON ORDER BUT WILL NOT GET THEM UNTIL 2023 DUE TO BACK UPS AT THE FACTORY. UNTIL THEN, WE WILL BE OFFERING RECYCLED CHIPS AT EXTREMELY COMPETITIVE PRICES, COMPLETE WITH A FIVE YEAR WARRANTY. IF YOU HAVE ANY ISSUES WITH THESE CHIPS IN THAT TIME PERIOD, WE WILL REPLACE THEM WITH BRAND NEW STOCK ONCE WE HAVE IT FROM THE FACTORY AND CAN MAKE OUR BRAND NEW LISTING FOR THIS ITEM LIVE AGAIN. THANK YOU VERY MUCH FOR YOUR INTEREST AND YOUR BUSINESS AT NESYNTH!!!!