Hackszine points to this nifty project that turns a floppy drive ribbon cable/connector into an SD/MMC card socket. The builder, Rob Wentworth, soldered this onto the PCB of his Linksys WRT54G router. If you’re running third-party firmware on your router, like DD-WRT or OpenWRT, this SD socket gives you access to a lot more apps, data, and swap-RAM space. This how-to only covers the SD socket side of things. Here’s a tutorial on attaching an SD socket to a WRT54G router.