Product name: 9 PIN/ 4PIN IEEE-1394B BILINGUAL FireWire 800 to FireWire 400 Cable


Description of 9 PIN/ 4PIN IEEE-1394B BILINGUAL FireWire 800 to FireWire 400 Cable


4 Pin Firewire (IEEE 1394) connectors are ones found on smaller portable devices such as camcorders. 9 Pin connectors are ones that support the new Firewire 800Mbps throughput. Use this cable to connect portable devices to 9 Pin connectors. Throughput is limited to 400Mbps of the 4 Pin connector.

• Plug-and-play Connectivity
• Highly Efficient Architecture
• Real-time Data Delivery
• On-bus Power
• Support for a Wide Range of Devices

Some knowledges of IEEE-1394 firewire cable:

1) difference between 4Pin, 6Pin and 9Pin Firewire connectors:
Each is a different size and configuration of connector. The 4 pin and 6 pin are ieee 1394a compliant which supports speeds up to 400mbps. The 9 pin connectors are ieee 1394b and support up to 800mbps. The ieee 1394b are generally backward compatible with the slower version but the speed would be limited to 400mbps when connected together.

4 pin is the smallest of the connectors and is generally found on portable devices such as camcorders and some laptops. It's a small rectangular shaped connector with an indent on one side.

The 6 pin is the most ubiquitous and is found on most devices like desktops, laptops, external drives, etc. It is similar in size to a USB and similar in shape. It is a flat rectangular connector with beveled edges on one side making the ports look like an elongated "D."

The 9 pin is the most recent type. It is found on newer high speed devices and computers. It is a block shaped, rectangular connector.

2) USB and firewire:
Firewire and USB, although similar are different, competing formats. You can not connect a device of one type into the port of another. They communicate in different formats and have different data transfer rates. If you do not have a firewire port on your computer, you can add one via a firewire PCI or PCMCIA card.