Computer Interface Speeds and Distances - CompTIA A+ 220-801: 1.7

USB (Universal Serial Bus)

• USB 1.1
• Low speed: 1.5 megabits per second, 3 meters
• Full speed: 12 megabits per second, 5 meters
• USB 2.0
• 480 megabits per second, 5 meters

• USB 3.0
• SuperSpeed: 4.8 gigabits per second, 3 meters
• The latest generation

IEEE 1394 / FireWire

• The term "FireWire" is an Apple trademark
• Most non-Apple hardware uses IEEE 1394, i.LINK or Lynx
• Daisy chain up to 63 devices
• FireWire 400(Alpha mode) IEEE 1394a
• 100, 200, or 400 Mbit/s half-duplex
• 4.5 meters (15 feet) distance limitation, 72 meters max

• FireWire 800 (Beta mode) - IEEE 1394b
• 800 Mbit/s full duplex
• Optical connections support 100 meter distance

SATA

• SATA Revision 1.0
• SATA 1.5 Gbit/s, 1 meter
• SATA 3.0 Gbit/s, 1 meter
• SATA 6.0 Gbit/s, 1 meter
• eSATA
• Matches the SATA version
• 2 meters

 Wireless interfaces

• IrDA

• 4 Mbit/s speed
• Line-of-sight
• 1 meter (3 feet) distance limitation

• Bluetooth

 

• Version 2.0 + EDR, 3 Mbit/s
• 10 meters (30 feet) for class 2 devices
• 1 meters (3 feet) for Class 3 devices

802.11 networking