I have 3.5" and the 2.5" adapters made by 2002 PC Engines. Quality is awesome. I only have couple comments: 2.5" CF adapter design (CFDISK.2D). Two complaints: mine uses 90 deg 44pin IDE on wrong side so doesn't fit well in notebook IDE trays, should had been reversed (physically and electrically) 44 pin connector to other side and use of stand offs via old style and new style 2.5" mounting patterns. These only use newer mountings pattern. There is plenty of older notebooks with old mounting pattern. Oh, don't try to use these adapters in older thinkpads. Too dumb bios hd detection, doesn't work. And no provisions to allow custom settings input into CMOS settings. Cheers, Wizard