6
System Requirements
To successfully install and use your Adaptec ACS-120 USB
Enclosure, your computer must meet these requirements:
■Microsoft® Windo ws® computers must be running
Windows XP, Windows 2000, Windows Me, or Windows 98SE
Macintosh computers must be running OS 9.2.2 or later for
USB 1.1 support, or OS 10.2.7 or later for USB 2.0 support
■Available USB port (see About USB 2.0 Performance below for
more information)
■CD-ROM drive

About USB 2.0 Performance

Your Adaptec ACS-120 USB Enclosure is a USB 2.0 device. 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 ACS-120 USB Enclosure to an Adaptec
USB 2.0 adapter for the highest-quality USB 2.0 connection.
Getting Started Checklist
Complete these steps to install and begin using your Adaptec
ACS-120 USB Enclosure:
❏Prepare the disk drive for installation (see below).
❏Install the disk drive (see page 7).
❏Install the device driver on your computer—Windows 98SE only
(see page 8).
❏Connect the enclosure (see page 9).
❏Prepare the disk drive for use (see page 11).