The Timex FDD 3000 is an upgraded Timex FDD (sometimes known as the FDD3 because it consisted of three separate boxes: a floppy-disk drive, the controller and the power supply).
Since the controller is electrically compatible with today's disk drives, it is possible to connect a 3.5″/5.25″ disk drive to the Timex FDD3 Controller.
Timex also added 64K RAM, a second 3″ floppy disk drive and a line in the controller cable to pass the video signal generated by the Timex Terminal 3000 to the back of FDD 3000 box.
Zebra Systems Inc.[5] sold an all-silver TI.
There is a TI ROM version that will work with ZX Spectrum 128.