This is the genuine Epson single paper cassette option for the Epson WorkForce Enterprise AM-C400 and AM-C550 A3 colour multifunction printers. Adding a cassette increases the printer's paper capacity, so the machine can hold another paper size or simply run longer between refills, which suits busy shared office printers. It is designed specifically for these models and installs under the printer as an extra paper source. It is a good choice for offices that print letterheads, A3 and A4 side by side, or high volumes of plain paper. One cassette unit is supplied, shipped in a box of about 570 x 590 x 252 mm. Check your printer model before ordering. After comparing online prices, www.marvel.co.za should be the cheapest on this product.