JHH-P1A PCIe3.0 Speed: PCIE X16 full bandwidth 3.0 , GEN3 protocol. Support transferring 2 ports 4 ports to 4xnvme SSD.
JHH-P1B PCIe4.0 Speed: PCIE X16 full bandwidth 4.0, GEN4 protocol, compatible with gen3gen4. Support 4 ports, connect 4xnvme solid state hard disk or 4xU2 hard disk.
JHH-P1A Come with Slim sas 8i connector, 1 in 4 clock split IC, power on LED indicator.
JHH-P1B Using high-density low-impedance 4-layer circuit board, Slim sas8i connector, PCIE GEN4 connector, power-on LED indicator. Adopt step-down IC and high-current inductor.
Conditions of use: Need your motherboard BIOS supports PCIE splitting working mode.