argon one m.2 case for raspberry pi 4 (argon m.2 case only) | sata ssd support | b-key and b+m key compatible argon forty the argon one m.2 case ups the ante by providing (1) two full-sized hdmi ports, (2) power management modes that allows for automatic booting, (3) built-in ir support with streamlined options for configuration and (4) integrated m.2 sata ssd support through the usb 3 ports of the raspberry pi 4. argon one m.2 case extended support for m.2 sata ssds allows you to maximize the true potential speeds of your raspberry pi 4. you will now be able to boot via an m.2 sata ssd for faster boot times and larger storage capacity compared to the traditional microsd card. argon one m.2 is uasp supported for the raspberry pi 4 which means you can maximize the transfer speeds of your m.2 sata drive. it is compatible with any m.2 sata ssd with b-key and b+m key.