1. DVD loader MDB-33 2. steady quality & competitive price 3. more optional colors 4. high price performance ratio DVD 1). Brown, black, blue, green, light blue, tea color, white transparent and so on.2). Deiffrent height as 27. 9mm, 28. 5mm, 32. 3mm, 32. 8mm. 35mm, 33mm, 36mm, 39mm, 40mm, 41. 5mm.3). With 3 connectors.4). Lens install up-bottom.5). Material:ABS DVD tray loader