A solid option is the ASUS PRIME B550M-X, offering many M.2 slots at an affordable price.
A solid option is the ASUS PRIME B550M-X, offering many M.2 slots at an affordable price.
Which system you're using—Intel or AMD—and whether your components like CPU and RAM are already installed.
The count of M.2 connectors is constrained by the number of PCIe lanes available. Each connector needs between 1 and 4 PCIe lanes, which limits how many you can fit. The newest AM5 and Intel boards offer 4 M.2 slots, thanks to the increased lane capacity in AM5 processors (28 lanes total) and upgraded chipsets. Older AM4 models provided up to 24 lanes, but only around 10-12 depending on chipset features. If your board supports dual-channel, you can use an adapter to split the video card slot’s lanes into four M.2 slots, even on older boards. Some specialized boards had more than four connectors, though these were costly and required Threadripper chips with 64 lanes. There are also adapters that change a PCIe x1 slot to a M.2 interface, though performance drops (500 MB/s for PCIe 2.0, ~985 MB/s for PCIe 3.0). Alternatively, adapters can convert a PCIe x4 slot to a M.2 connector.