Featuring a 9-pin connector design ; the new FireWire IEEE 1394b ports will continue to support all the advantages that have made FireWire a predominant ; high-speed interface-including simultaneous connection of up to 63 devices ; real-time digital audio and video transfer ; peer-to-peer device connections ; Plug-and-Play device installation ; and hot swap capability. The new FireWire IEEE 1394b specification is backward-compatible with existing FireWire technology ; which makes it an ideal sol