Cisco CAB-GS-1M GigaStack Cable.
The GigaStack GBIC is an adapter that can only be installed into the GBIC modules slot of any supported switch. The maximum distance for a GBIC-to-GBIC connection is one meter. The GigaStack GBIC requires Cisco proprietary signaling and cabling. Each GigaStack GBIC consists of two ports, port 1 and port 2. One or both ports can be used, depending on cabling configuration.
Cable length: 1 Meter
For use with Cisco WS-X3500-XL GBIC.
Caution: Do not use standard IEEE 1394 cables with the GigaStack GBIC. You must use one of the Cisco proprietary cables (CAB-GS-50CM or CAB-GS-1M). If you use any other cable, you will not have connectivity.