Review on Convert SD/SDHC Card to IDE 3.5" Drive with KOOBOOK 1Pcs Adapter: Male IDE HDD Adapter by Ronggolawe Denney

Works very well. With the XT Universal BIOS you will have no problems. I've also tried using a regular motherboard BIOS with LBA support if you want to go that route. Pretty quick for the 486 I compared it to. Downsides include the built-in LEDs, which are too bright to look at, and the pins on the power connector protrude from the bottom, so you have to be very careful not to install it in a spot that could cause a short circuit. She. Thingiverse has a nice mount by NilsR that works for both short circuit protection and mounting in a 3.5" bay, look for item: 4368606