Nortel AL2018014-E6 5500-SSC Stacking Cable (5 meters / 16.4 feet).For the Ethernet Routing Switch 5510-48T, 5510-24T, 5520-48T-PWR, 5520-24T-PWR, and 5530-24TFD only.(EUED RoHS 6/6 compliant) 
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Product description 
Nortel Stacking Cable - 5m 
Stacking cables 
5 m 
Developed for 
Ethernet routing switch 5510-24T, 5510-48T, 5520-24T-PWR, 5520-48T-PWR