An electronic device caddy includes a first tray portion with at least two spaced lengthwise channels and an end cage and a second tray portion also including an end cage and at least two lengthwise rails slideable in the spaced channels of the first tray portion to load and accommodate different size electronic devices between the end cages. A locking mechanism releasably locks at least one rail in its channel. A mounting bracket is attached rearward of one tray portion.