With the popularity of USB3.0、 Now more and more motherboards already have a USB3.0 19pin socket mouth、 But did not take the front chassis USB3.0、 you can use this panel by panel、 a plug socket 19PIN to the motherboard、 Leads to two pre-USB3.0 + TYPE-C + HD-AUDIO interface、 you can experience the pros and cons inserted! Floppy drive installed in the idle position、 thus providing the front of the ultra high speed USB3.0 interface、 very convenient! Dimensions: 3.94 in x 3.74 in x 0.98 in (10.0 cm x 9.5 cm x 2.5 cm) Weight: 3.81 oz (108 g)