100 Gbps QSFP28-to-QSFP28 passive direct attach copper (DAC) twinax cable for top-of-rack server-to-switch and switch-to-switch interconnect. Passive construction draws < 0.1 W per end (effectively zero — the silicon dies in the QSFP28 are unpowered for passive variants).
Standard lengths 0.5 m, 1 m, 2 m, 3 m, and 5 m; custom lengths to 7 m available (longer reaches require active DAC or AOC). Construction is 30 AWG twinax for ≤ 3 m, 26 AWG for longer; signal integrity tested for full IEEE 802.3bj compliance at 25.78 Gbps per lane × 4 lanes. Insertion loss < 22 dB at 13.79 GHz. Operating temperature 0 to +70 °C; industrial -40 to +85 °C on request.
Programmed for Cisco IOS XR / NX-OS, Arista EOS, Nvidia Spectrum / Quantum, Juniper QFX / EX, Mellanox MLNX-OS, Brocade FOS, and ~20 other switch platforms. Breakout variants — 1× QSFP28-to-4× SFP28 (25G) — also stocked. Every cable is BER-tested on the target platform before packaging.
