So sch USB 2.0 vs 3.0Thuc tnhUSB 2.0USB 3.0
Tc (speed)High Speed hoc HS, 480 Mbps (Megabits per second)Nhanh
gp 10 ln USB 2.0Super Speed or SS, 4.8 Gbps (Giga bits per
second)
Phng php truyn tn hiuHalf duplexFull duplex
Power 2.5W4.5 -7 W
Max Cable length5 m 3m
The number of wire connections4 wires nn ch h tr truyn half
duplex 9 wires h tr truyn full duplex
Communication architectureUSB 2.0 s dng mt kin trc truyn thng ni
trao i d liu phi c khi xng bi Host. Cc thit b ch truyn ti d liu khi
c yu cu t host . Tn s polling cao khng ch lm tng mc tiu th in nng,
n lm tng tr truyn dn v d liu ch c th c truyn i khi thit b c s ng ca
host USB 3.0 cho php cc thit b truyn ti d liu ngay khi cc thit b sn
sng
Power consumptionCi thin tiu th in nng hn USB 2.0
Mt s hnh nh khc nhau v cng USB
