Lenovo 1m Passive 400G QSFP112 DAC 4X97B00140 | QSFP112, 400G, Enterprise

Build short-reach 400G interconnects without adding optical modules or extra power draw. Lenovo’s 1 m Passive 400G QSFP112 DAC is designed for dense rack environments where equipment sits close together and every port, watt, and millisecond matters. By using direct-attach copper, it reduces component count and simplifies cable management compared with separate transceivers and fiber patching. This cable is a strong fit for top-of-rack and adjacent-rack links that stay within a 1 m run. It supports QSFP112-based 400G connectivity, making it suitable for high-bandwidth aggregation, leaf-spine adjacency, and other short-distance data center paths where passive copper is the right economic choice. For teams standardizing on 400G infrastructure, it offers a straightforward way to connect compatible ports with minimal overhead. Choose this model when you want the lowest-complexity path for very short 400G connections. It is purpose-built for environments that value deterministic cabling, reduced optical spend, and clean rack layouts.