Tecnologia1 mintechpowerup.com04/08/2026
Lekuo Launches B650 Chipset Add-in Card for I/O Expansion
Lekuo, an add-in card manufacturer that produces just about any add-in card you can think of, has released what they call the SouthBridge Max PCIe 4.0 Multi-Function Expansion Car…
Lekuo, an add-in card manufacturer that produces just about any add-in card you can think of, has released what they call the SouthBridge Max PCIe 4.0 Multi-Function Expansion Card or PB65MX3. We found out about this courtesy of TPU forum member FoulOnWhite who spotted this commercial version of something that first appeared back in January this year as a DIY project, but Lekuo's version brings with it a lot more features. Based on the Promontory 21/B650 AMD chipset, the expansion card not only adds four SATA 6 Gbps ports and four M.2 NVMe slots, but also a USB Type-C 3.2 Gen 2x2 port (20 Gbps), one USB Type-C 3.2 Gen 2 (10 Gbps) port and two USB Type-A 3.2 Gen 2 (10 Gbps) ports.
The card requires a PCIe 4.0 x4 slot to enable full functionality, but Lekuo points out that it doesn't require support for bifurcation from the system to work properly. The card measures 174 x 69 mm (D x H) and it needs to be connected to a 6-pin power connector. Lekuo doesn't specify which systems it will work with though, but a safe bet is most AMD AM5 platforms, but as we saw from the DIY solution back in January, it should also be compatible with Intel hardware.
The card requires a PCIe 4.0 x4 slot to enable full functionality, but Lekuo points out that it doesn't require support for bifurcation from the system to work properly. The card measures 174 x 69 mm (D x H) and it needs to be connected to a 6-pin power connector. Lekuo doesn't specify which systems it will work with though, but a safe bet is most AMD AM5 platforms, but as we saw from the DIY solution back in January, it should also be compatible with Intel hardware.