Up for sale is a vintage logic control board pulled cleanly from a TEAC FD-55 series 5.25" floppy disk drive (FD-55GFR legacy format). Features the native 34-pin IBM PC/AT compatible gold edge interface, manual configuration jumper pin rows (DS0/DS1/IU), and the proprietary central Toshiba Gate Array ASIC (TC160G10N / 21D7-50) chip. Pristine board traces with no apparent capacitor leakage. Ideal replacement logic board for retrocomputing restoration or archiving old media on heritage 286/386/486 setups.TECHNICAL PRESERVATION & COMPLIANCE NOTICE:This item is a vintage, unpopulated semiconductor engineering sample, validation test vehicle, or historical computing artifact. It is sold strictly as a historical collectible, educational display piece, or for parts/restoration. Due to its vintage nature, pre-production status, and lack of standard retail packaging, it is offered completely AS-IS, with no guarantees of electrical functionality or software compatibility. No returns or refunds will be accepted based on structural performance