Introduction

IOIUSB's presents the 5-port PCI to USB 2.0 host adapter, IOI-4501, which is 40 times faster than USB 1.1. IOI-4521 complies with USB Revision 2.0 and OHCI (Open Host Controller Interface) specification for full/low-speed signaling, and Intel's EHCI (Enhanced Host Controller Interface) specification for high-speed signaling which can work up to 480Mbps.

IOI-4521 takes full advantage of the newest USB 2.0 devices including hard drives and CDRWs. IOI-4521 is simple and easy for adding USB to desktop PCs which have no USB ports, or existing USB systems which need high speed (up to 480Mbps) connections. It is also fully backward compatible with existing USB 1.1 devices and allows you to connect USB based printers, modems, speakers, scanners, and hundreds of other devices. The installation is easy without complex setup guide, confusing plug-ins, or IRQs. The device connectivity is up to 127 USB products to your PC. Its plug-and-play and hot-swappable features run smoothly under Windows 98SE, Millennium Edition, 2000, and XP systems.

Feature
  • Compatible with OpenHCI and EHCI
  • Fully compatible with standard Microsoft USB Drivers
  • Support up to 127 devices over an industry-standard USB-compatible 4-wire cable
  • Support all USB-compatible Devices
  • Integrate seamlessly with NEC's device-side ASICs and d USB HUB-based products. Ensure 100% compatibility for today and future.
Technical Specifications
Host Bus:
  • 2-bit PCI Local Bus, Rev. 2.1 & 2.2 Compatible
  • PCI Bus Power Management Interface Release 1.1
Data Transfer Modes:
  • High-Speed at 480Mbps
  • Full-Speed at 12Mbps
  • Low-speed at 1.5Mbps
USB Port :
  • IOI-4521: Five A-Type Ports (3 External + 2 Internal)
  • IOI-4521i: Five Ports (3 External A-Type CONN + 2 Internal Box Header 2x5 CONN)
PCI Multifunction Device - Controllers
  • Two OHCI Host Controller cores for full-/low-speed(12/1.5Mbps)
  • One EHCI Host Controller core for high-speed(480Mbps)
Operating Environment :
  • Temperature Operating: -40 to 55 X C
  • Temperature Non-operating: -20 to 60 X C
  • Relative Humidity: 0-80% (non-condensing)
Operating System Requirements
  • Windows 98SE
  • Windows ME
  • Windows 2000
  • Windows XP