Apple’s decision to hide the USB ports on the back of its iMac computers makes connectivity a little challenging for detachable accessories such as flash drives—reaching around to the back every time you want to attach or detach something can be inconvenient. Bluelounge’s Jimi ($15) solves this by using a J-shaped USB extender to relocate the port to the bottom of the iMac’s front. USB 3.0-certified, the extender also makes…