Dc Axial Fan, Ball, 4.9Cfm, 0.08A, 5V; Supply Voltage Vdc:5V; Fan Frame Type:Square; Fan Frame Size:40Mm; External Depth:10Mm; Bearing Type:Ball Bearing; Air Flow - Cfm:4.9Cfm; Noise Rating:21.5Db; Power Rating:400Mw; Ip Rating:- |Nmb Technologies 04010SA-05L-ATD-0