1. Introduction

This User’s Guide describes how to install the RATOC USB2.0 PCI Host Adapter Board. (called PCIU2 in this User’s Guide).

The information in the README.TXT file on the CD-ROM may include the latest information. Be sure to read the file as well.

1-1. Features

•Supports 480Mbps(High-speed), 12Mbps(Full-speed), 1.5Mbps(Low-speed) data transfer mode. This USB2.0 host adapter is fully backwards compatible with the currrent USB1.1 devices. •Certified and passed USB HI-SPEED Compliance test.

•Includes our original USB2.0 EHCI driver.

Supports Windows 98SE, Windows Me, Windows 2000. •500mA max. per port available.

•Includes Low-Profile PCI bracket. You can use this PCIU2 PCI board with a Low-Profile PC.

1-2. Restrictions

•You can’t connect a USB2.0 device via a USB2.0 HUB. •The driver doesn’t support Isochrounous transfer mode.

•When you remove a USB device and connect it again, you have to wait for over 3 seconds before you connect it again.

•You can’t remove/connect a USB device when PC is in the following status:

In standby mode, getting ready for standy mode, resuming from standby mode.

In hybernation mode, getting ready for hybernation mode, resuming from hybernation mode. •This driver doesn’t support remote wake up from a USB device.

•Other restrictions are written in the readme.txt file.

1-3. Required Operating Systems

•Windows 98 SE(Second Edition)

•Windows 2000

•Windows Me(Millennium Edition)

1-4. Other Requirements

•Available PCI slot

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Ratoc Systems PCIU2 user manual Introduction, Features, Restrictions, Required Operating Systems, Other Requirements

PCIU2 specifications

The Ratoc Systems PCIU2 is a high-performance USB expansion card designed to enhance connectivity options for computer systems. This PCI card allows users to add additional USB ports to their desktop systems efficiently, catering to both modern and legacy USB devices. The PCIU2 is particularly beneficial for users who require multiple USB connections for peripherals like printers, external drives, and other USB devices.

One of the main features of the PCIU2 is its support for USB 2.0 standards, offering data transfer rates of up to 480 Mbps. This means that users can enjoy fast and efficient data transfer, which is crucial for tasks that involve large file transfers, such as backups, video editing, or high-resolution image transfer. The card is designed to be compatible with a wide range of operating systems, including Windows and Mac OS, making it a versatile choice for different users.

The PCIU2 utilizes the latest technology in USB connectivity and power management. Each USB port is capable of providing sufficient power to connected devices, ensuring optimal performance. This is particularly important for devices that require higher power levels, such as external hard drives, which can sometimes struggle with lower-powered USB connections.

Another characteristic of the Ratoc Systems PCIU2 is its simple installation process. It is designed to fit into standard PCI slots, making it easy for users to upgrade their systems without requiring extensive technical knowledge. The card includes drivers that are easy to install, allowing users to quickly set up their new USB ports without hassle.

In terms of build quality, the PCIU2 features a robust design, ensuring durability and longevity. The card is equipped with over-current protection mechanisms to prevent damage to connected devices, providing peace of mind when using multiple peripherals simultaneously.

Overall, the Ratoc Systems PCIU2 stands out as a reliable and efficient solution for expanding USB connectivity in desktop computers. With its high data transfer rates, compatibility with a range of operating systems, and straightforward installation process, it meets the needs of both casual users and professionals looking to maximize their system’s capabilities. Whether enhancing a home office or optimizing a creative workstation, the PCIU2 is a compelling choice for anyone seeking improved USB performance.