400G QSFP-DD to 4x100G QSFP56 Breakout DAC Cable, 1m/3.3ft Passive Copper Twinax, 8x50G PAM4 to Four 100G Ethernet Ports, 30AWG for Compatible Switches, Servers and NICs

400G TO 4×100G BREAKOUT Splits one 400G QSFP-DD Ethernet port into four independent 100G QSFP56 connections, allowing a compatible high-density switch port to connect with four servers, network adapters or downstream switches.
QSFP56 ENDPOINTS Features one QSFP-DD connector and four individually numbered QSFP56 connectors. The host device must support 4×100G breakout mode. The four endpoints are QSFP56 and should not be confused with standard 100G QSFP28 ports.
PASSIVE COPPER DESIGN The 1m/3.3ft 30AWG twinax construction provides a short-range, low-latency connection without separate optical transceivers or external power, making it suitable for connections within the same rack.
8×50G PAM4 ARCHITECTURE Carries eight 50G PAM4 lanes from the QSFP-DD side and divides them into four 100G links using two 50G PAM4 lanes per QSFP56 endpoint. Designed for compatible 400 Gigabit Ethernet equipment.
VERIFY DEVICE COMPATIBILITY Port shape alone does not guarantee operation. Confirm that the QSFP-DD host supports 4×100G Ethernet breakout and that each destination device supports 100G QSFP56 signaling and the required EEPROM coding before ordering.