Adaptec ACS 200 User Guide - Page 14

About USB Technology, About USB 2.0 Performance, About SATA II 3Gbps Performance - external hard drive

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Page 14 highlights

If you don't see the hard drive under "My Computer", follow the instructions on page 7 to enable the "Removable" option that may fix the issue. About USB Technology USB stands for Universal Serial Bus. It is the interface between your computer and the USB devices you plug into it. Your computer communicates with USB devices through the USB interface. USB devices can be plugged into USB ports only, and must be supported by USB drivers. USB 1.1 devices operate at a maximum speed of 12 Mbps (Megabits per second); USB 2.0 devices operate at a maximum speed of 480 Mbps. About USB 2.0 Performance Your Adaptec ACS-300 enclosure provides a USB 2.0 port. For it to operate at USB 2.0 speeds, it must be connected to a USB 2.0 port, and USB 2.0 drivers must be installed on your computer. If your computer does not have a built-in USB 2.0 port, Adaptec recommends connecting the enclosure to an Adaptec USB 2.0 adapter for the highest-quality USB 2.0 connection. About SATA Technology Serial ATA is the next-generation internal storage interconnect designed to replace Ultra ATA technology. Serial ATA is the proactive evolution of the ATA interface from a parallel bus to serial bus architecture. This architecture overcomes the electrical constraints that are increasing the difficulty of continued speed enhancements for the classic parallel ATA bus. Serial ATA was introduced at 150Mbytes/sec, with a roadmap already planned to 600Mbytes/sec, supporting up to 10 years of storage evolution based on historical trends. Though Serial ATA will not be able to directly interface with legacy Ultra ATA hardware, it is fully compliant with the ATA protocol and thus is software compatible. About SATA II (3Gbps) Performance Your Adaptec ACS-300 enclosure provides an industrial standard eSATA connector for external connection. It works with SATA I (1.5Gbps) or SATA II (3Gbps) hard disk drive. To operate in highest possible speed, you need a SATA II hard disk drive and an SATA II (3Gbps) add-on card that provides at least one eSATA external SATA port. If your computer does not have an eSATA port or SATA II 3Gbps speed, Adaptec recommends connecting the enclosure to an Adaptec's SATA adapters. 10

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If you don’t see the hard drive under “My Computer”, follow the instructions
on page
7
to enable the “Removable” option that may fix the issue
.
About USB Technology
USB stands for Universal Serial Bus. It is the interface between your computer
and the USB devices you plug into it. Your computer communicates with USB
devices through the USB interface.
USB devices can be plugged into USB ports only, and must be supported by
USB drivers.
USB 1.1 devices operate at a maximum speed of 12 Mbps (Megabits per second);
USB 2.0 devices operate at a maximum speed of 480 Mbps.
About USB 2.0 Performance
Your Adaptec ACS-300 enclosure provides a USB 2.0 port. For it to operate at USB
2.0 speeds, it must be connected to a USB 2.0 port, and USB 2.0 drivers must be
installed on your computer.
If your computer does not have a built-in USB 2.0 port, Adaptec recommends
connecting the enclosure to an Adaptec USB 2.0 adapter for the highest-quality
USB 2.0 connection.
About SATA Technology
Serial ATA is the next-generation internal storage interconnect designed to replace
Ultra ATA technology. Serial ATA is the proactive evolution of the ATA interface
from a parallel bus to serial bus architecture. This architecture overcomes the
electrical constraints that are increasing the difficulty of continued speed
enhancements for the classic parallel ATA bus. Serial ATA was introduced at
150Mbytes/sec, with a roadmap already planned to 600Mbytes/sec, supporting up
to 10 years of storage evolution based on historical trends. Though Serial ATA will
not be able to directly interface with legacy Ultra ATA hardware, it is fully compliant
with the ATA protocol and thus is software compatible.
About SATA II (3Gbps) Performance
Your Adaptec ACS-300 enclosure provides an industrial standard eSATA
connector for external connection. It works with SATA I (1.5Gbps) or SATA II
(3Gbps) hard disk drive.
To operate in highest possible speed, you need a SATA II
hard disk drive and an SATA II (3Gbps) add-on card that provides at least one
eSATA external SATA port.
If your computer does not have an eSATA port or SATA II 3Gbps speed, Adaptec
recommends connecting the enclosure to an Adaptec’s SATA adapters.
10