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We recommend Sonnet Technologies Allegro Express USB 2.0 Adapter Card for PCI Express Computers. (Mfr P/N: USB2-E) from Sonnet Technologies for $54.99 as a suitable alternative.

IOGEAR

5-Port USB 2.0
PCI Host Adapter

Mac / PC / USB 2.0 / PCI
Expansion Made Easy
Expansion
Gain additional USB ports with IOGEAR's 5-port USB 2.0 PCI Card (GIC251U). USB 2.0 moves data at a blazing fast rate of 480 Mbps (megabits per second), and is fully backwards compatible with all first generation USB devices. With the increase in speed, USB 2.0 offers enhanced functionality, allowing more devices to share the increased bandwidth. The USB 2.0 PCI card will allow you to take full advantage of the USB 2.0 technology on USB 1.1 systems.
Forget the Hub
With a hub, every peripheral you plug in has to share a single port's bandwidth (potentially affecting the devices' performance), and you may have to plug it into a power outlet as well as your computer in order to operate some devices. Additionally, each of the 5-Port USB 2.0's five powered ports supports bus-powered peripherals (devices that work without a separate power supply, including some small external drives and scanners) and hi-speed data transmission.

Product Specifications:

IOGEAR Part Number

  • GIC251U

Hardware Requirements

  • Mac or PC with available PCI slot

Form Factor

  • Half-length full-height

Operating System Support

  • Mac OS X 10.3 to 10.5.2
  • Windows XP SP2 or later

Data Transfer Rate

  • USB 2.0: up to 480Mb/s (60MB/s) per port

Number of Devices Supported

  • Up to 127 downstream USB devices

External Connectivity

  • 4 USB 2.0 Type A ports

Internal Connectivity

  • 1 USB 2.0 Type A port

Hot Swappable

  • Yes

Hot Pluggable

  • Yes

Plug and Play

  • Supported for Mac OS X 10.3 - 10.5
  • Supported for Windows XP SP2 and later

Standards & Compliances

  • Standard USB Specification v. 2.0/1.1/1.0 compatible.
  • Complies with OHCI (Open Host Controller Interface)
  • Complies with EHCI (Enhanced Host Controller Interface)
  • PC Power Management v2.2 compliant

Dimensions (l x w x h)

  • 5.25" x 4.75" x 0.91" (13.3 x 12.0 x 2.3 cm)

Weight

  • 5.6 oz (0.16 kg)

Operating temperature

  • 20° ∼ 50° C

Storage temperature

  • 0° ∼ 70° C

Operating Humidity

  • 20-80% RH, (Non Condensing)

Warranty

Please Note:
- This product is not compatible with the Apple USB SuperDrive and MacBook Air SuperDrive.
- Deep Sleep not supported under Mac OS X Versions 10.4 or 10.3.

Gallery

This product is compatible with... Learn how to find your Mac's model ID
PowerMac G5
Power Mac G5 (Early 2005)
(April, 2005)
Model ID: PowerMac7,2
dual 2.0GHz
PowerMac G5
Power Mac G5 (Late 2004)
(October, 2004)
Model ID: PowerMac9,1
1.8GHz
PowerMac G5
Power Mac G5 (June 2004)
(June, 2004)
Model ID: PowerMac7,3
dual 1.8GHz, dual 2.0GHz, dual 2.5GHz
PowerMac G5
Power Mac G5
(June, 2003)
Model ID: PowerMac7,2
1.6GHz, 1.8GHz, dual 1.8GHz, dual 2.0GHz
PowerMac G4
Power Mac G4 (Mirrored Drive Doors 2003)
(June, 2003)
Model ID: PowerMac3,6
1.25GHz, dual 1.25GHz
PowerMac G4
Power Mac G4 (FW 800)
(January, 2003)
Model ID: PowerMac3,6
1.0GHz, dual 1.25GHz, dual 1.42GHz
PowerMac G4
Power Mac G4 (QuickSilver 2002 ED)
(August, 2002)
Model ID: PowerMac3,5
867MHz
PowerMac G4
Power Mac G4 (QuickSilver 2002)
(January, 2002)
Model ID: PowerMac3,5
733MHz, 800MHz, 933MHz, dual 1.0GHz
PowerMac G4
Power Mac G4 (QuickSilver)
(July, 2001)
Model ID: PowerMac3,5
733MHz, 867MHz, dual 800MHz
PowerMac G4
Power Mac G4 (Digital Audio)
(January, 2001)
Model ID: PowerMac3,4
466MHz, 533MHz, dual 533MHz, 667MHz, 733MHz
PowerMac G4
Power Mac G4 (Gigabit Ethernet)
(July, 2000)
Model ID: PowerMac3,3
400GHz, dual 450MHz, dual 500GHz
PowerMac G4
Power Mac G4 (AGP Graphics)
(September, 1999)
Model ID: PowerMac3,1
350MHz, 400MHz, 450GHz, 500GHz
PowerMac G4
Power Mac G4 (PCI Graphics)
(August, 1999)
Model ID: PowerMac1,2
350MHz, 400MHz
PowerMac G3 Blue & White
Power Macintosh G3 (Blue & White)
(January, 1999)
Model ID: PowerMac1,1
300MHz, 350MHz, 400MHz, 450MHz
PC Desktop
PC Desktops
Compatible with Intel / AMD Process based PCs capable with the specifications listed above.

Customer Ratings

Write a Review 5 / 5 4 out of 4 (100%) reviewers would recommend this product
Verified Buyer
Reviewer: RCK4 Location: Las Vegas, NV Age: Over 65 Experience Level: Home User Owned Product: 1-3 months
Rating: 5/5 Still working May 9, 2018 It is now eight years since I installed this expansion card and it is still working perfectly.

I would recommend this item to a friend! Customer Videos:

Verified Buyer Top 250 Contributor
Reviewer: Anonymous Location: Sydney, Australia Age: 45-54 Experience Level: Home User Owned Product: over 6 months
Rating: 5/5 Good value for money November 3, 2015 No compatibility problems, works with all devices so far, and is fast. Good value for money.

I would recommend this item to a friend!

Verified Buyer
Reviewer: drtype
Rating: 5/5 Just the right board for my computer October 4, 2012 I always can depend on OWC for sending me a dependable product without a hassle. Love the plug and play features of all the Mac products

Bob Trogman, Palm springs, California

I would recommend this item to a friend!

Verified Buyer
Reviewer: kallim123 Location: Arnessysla, Iceland Age: Over 65 Experience Level: Home User Owned Product: over 6 months
Rating: 5/5 This product has great features - works fine August 15, 2012 Excellent process- purcasing - Delivery Fast - Item Installed and Works fine. Price OK.

Have Purchased this Item 2 or 3 times before from OWC and with same exellent process. Used in PowerMacs PPC G4 - G5 Thanks to OWC

I would recommend this item to a friend!

IOGEAR 5-Port USB 2.0 PCI Host Adapter Mfr P/N: GIC251U OWC SKU: IOGGIC251U USB 2.0 5 port Host Bus Adapter for Power Macintosh G3 B&W through Power Macintosh G5 IOGEAR 3 Year Limited Warranty
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