The Chieftec UNC-411E-B-OP is a black 4U, 19-inch rack chassis for server systems. Its 1.2 mm SECC steel body supports mATX, ATX and EATX motherboards, giving you a choice of board sizes when configuring a server.
At 600 × 485 × 177.5 mm (D × W × H), it has two front USB 3.0 ports (USB 3.1 Gen 1), seven expansion slots and two internal 3.5-inch drive bays. The front ports provide access for connecting peripherals, while the slots allow compatible expansion cards to be fitted.
Optional fan positions accommodate one 120 mm fan at the front and two 80 mm fans at the rear. Maximum CPU cooler height is 140 mm, and maximum VGA card length is 330 mm. A power supply is optional; the chassis accepts a standard ATX PSU or a 1+1 redundant PSU with the included mounting kit.
Accessories: screw set, ten 5.25-inch-to-3.5-inch converter brackets and a clamp-down bar for PCI-E cards.