Features: PCIE 4.0 4X Male to Female Extension Cable Flat PCIE 4.0 4X Extension Cable, 8GB/S bidirectional bandwidth. Adopts shielded cable, double-layer wiring, thickness 2mm, width 18mm Support PCIE 4.0 devices, backward with PCIE 3.0. Gold plate connectors process, thickness 5U, low-impedances circuit board. Adopts GEN4 connectors, gold-plate 15U; cable can be folded to adapt to small space installation. Support PCIE 4X soliddrive, capture card, whole column card, etc., doesnot support PCIEX8 X16. Specifications: Item：PCIE 4.0 4X Male to Female Extension Cable Cable Length：about 5.0cm/1.97in 10cm/3.94in 15cm/5.9in 20cm/7.87in 25cm/9.84in 30cm/11.8in 40cm/15.75in 50cm/19.7in Package Includes: 1PC PCIE 4.0 4X Male to Female Extension Cable note: Due to the problem of lighting effectsand shooting, there mightbe certain tolerances in product, please understand. Please allow 0-1cm error due to the manualed measurment.