PCIe_Bifurcation

Open source one: CEM4NGFF_EVM (corrected and verified, used normally)

Features and functions: The motherboard PCIEX16 interface is split into four sections, connecting four PCIE NVME M.2 SSDs, supporting 22110 length M.2, and integrating USB3.1 10G HUB, providing an external TYPEC 10G (5V 3A) , one TYPEA 10G (5V 2A), built-in one TYPEA 10G.

Open source 2: CEM4U.2_EVM (corrected and verified, used normally)

Features and functions: Same as open source, except that four M.2 hard drives are replaced by four U.2 hard drives.

Open source three: CEM8484_EVM (corrected and verified, used normally)

Features and functions: Split PCIEX16 into 2 X8 or 4 X4 (adaptive). Four PCIE SWITCHs are used. When PCIE2 and PCIE4 are not plugged into the device, PCIE1 and PCIE3 enjoy X8 speed, otherwise they are both X4.

Open source four: CEMOCP2NGFFMINISASHD (corrected and verified, used normally)

Features and functions: Split PCIEX16 into 1 OCP 2.0 MEZZ card and 1 M.2 22110 SSD, and provide 2 MINISASHD (NVME) interfaces. NVME_2 and OCP 2.0 share the X8 rate.

Open source five: CEMOCP3.0 (corrected and verified, used normally)

Features and functions: Convert the OCP 3.0 network card removed from the server to a standard PCIE and use it on an ordinary motherboard.

Open source six: KRPA-U16_RISER_8xNGFF (corrected and verified, used normally)

Features and functions: This is the latest super cheap EPYC motherboard from Xueyu, ASUS KRPA-U16 PCIEX24 interface RISER. Convert this motherboard X24 into 6 M.2 GEN4, and connect the two additional SFF8611 interfaces next to it, so that a single card can support 8 PCIEX4 4.0 M.2 SSDs, and the maximum throughput theoretically reaches 512G.

Open source seven: SLIMSAS_CEMX8 (corrected, separate post)

Features and functions: Many server motherboards now integrate many SLIMSAS interfaces. Use this expansion board to convert them into standard PCIEX8.

This project will continue to add projects and continue to update. All projects in this project are unconditionally open source and can be copied and modified at will for mass production and commercial use. It is not mandatory to retain personal information.

Please jump to some old standard version open source projects:

https://oshwhub.com/oldmonster/OOCP