I'd like to find a source for black keyboards too! Tex*In Treasures, when the website was up, used to sell the beige keyboards brand new for $5. They were packaged in either Tandy or Radio Shack Branded bags like S1500 was talking about. I believe Tandy bought the keyboard overstock when TI gave up on the home computer business. I don't remember them referencing they were made for the 4A on the packaging, as they were packed as a hobbyist keyboard that could be used on anything, but they were indeed 4A keyboards. I remember only seeing them in beige, not black. TI must of used up all their black keyboards as the beige one was the last model of the 4A to be built.