Which of the following buses has a maximum data transfer rate of 2400 Mbps?

A.
FireWire 800

B.
eSATA

C.
USB 1.1

D.
USB 2.0

Explanation:

External Serial Advanced Technology Attachment (eSATA) is an external Interface and provides hot
swappable hard disk drive solution. It is an external interface for Serial Advanced Technology
Attachment (SATA) technology. It is designed to support hot-plugging. Hence, it allows users
to connect a hard disk drive while the computer is running. eSATA has data transfer rates three
times more than USB 2.0 and FireWire 400. Unlike USB and FireWire interfaces, eSATA requires its
own power connector. eSATA supports a maximum data cable length of two meters. It has a
maximum data transfer rate of 2400 Mbps.
Answer option A is incorrect. FireWire 800 bus has a maximum data transfer rate of 786.432 Mbps.
Answer options D and C are incorrect. Universal Serial Bus (USB) is a high speed bus standard
developed by Compaq, IBM, DEC, Intel, Microsoft, NEC, and Northern Telecom. It provides the Plug
and Play capability of Windows to external hardware devices. USB supports hot plugging, which
means that a USB device can be installed or removed while the computer is running. A single USB
port can be used to connect up to 127 peripheral devices, such as CD-ROM drives, tape drives,
keyboards, scanners etc. USB 1.1 has a maximum data transfer rate of 12 Mbps and USB 2.0 has a
maximum data transfer rate of 480 Mbps.
Reference: “http://en.wikipedia.org/wiki/List_of_device_bandwidths”