6469287-1 is a Z-PACK HM-Zd 4-pair vertical pin header assembly designed for high-speed differential signal transmission in AdvancedTCA Zone 2 backplane applications. This connector features a 12-column configuration with a module length of 30.00 mm (1.181 in), providing 96 signal contacts and 48 ground contacts. The pin header has a tail length of 2.50 mm (0.098 in) and a mating pin length of 5.30 mm (0.209 in), with press-fit termination for reliable PCB connections. Designed specifically for high-speed differential applications supporting data rates from 3.125 Gb/s to 10+ Gb/s, this connector meets Telcordia requirements and is ideal for telecommunications infrastructure equipment including wireless base stations, media gateways, and network switches.