1-to-4 fanout design: Single SFF-8654 SlimSAS 4i 38Pin host port splits into four independent SFF-8482 29Pin all-in-one data & power drive interfaces; Compliant with Slimline SAS 4.0 & PCIe 4.0 x4 standards, each channel supports SAS 3.0 24Gbps high-speed transmission for SAS/SATA HDD/SSD; SFF-8482 integrated data+power plug design, directly connects to 2.5 / 3.5 -inch SAS & SATA hard drives without separate power wiring; Multi-layer aluminum foil shielding with precise 100-Ohm impedance control, eliminates crosstalk, signal attenuation and EMI interference; Universal internal routing design, compatible with SlimSAS RAID/HBA cards, server disk backplanes, NAS and multi-drive JBOD storage arrays