
The QSFP-40G-SR4-P is a 40 Gigabit Ethernet QSFP transceiver, designed for short-range optical communication over multimode fiber. “SR4” indicates it uses four parallel lanes for data transmission, commonly used in data center interconnections. This module facilitates high-bandwidth connections between switches, routers, and servers within or between racks. The “-P” suffix usually represents a vendor-specific part number, ensuring compatibility with particular network equipment.