The 2299870-1 is a high-speed, thermally enhanced zQSFP+ stacked receptacle assembly designed for demanding data and device applications. With a compact 2x2 port matrix configuration, this connector accommodates four 25 Gb/s data interfaces. Featuring through-hole press-fit termination for secure and reliable board mounting, it is constructed with UL 94V-0 rated materials for safety and durability. Each of the 38 gold-plated contacts ensures optimal signal transmission, while internal/external EMI springs provide robust EMI and RFI protection. The included quad square lightpipe allows for easy status indication, and the anodized black fin heat sink offers efficient thermal management. RoHS compliant and with ECCN EAR99 classification, this connector assembly is ideal for high-speed, mission-critical applications.