- M.2 SATA SSD Compatibility | Accepts any size of M.2 SATA SSD with Key-B or Key-B amp;M - UASP Supported for Raspberry Pi 4 | Maximizes the high speed data transfers for Raspberry Pi 4 - Two Full-Sized HDMI | Improves the dual-monitor support of the Raspberry Pi 4 for its video input - Power Management Modes | Offers 2 power management options with automatic booting or “Always ON Mode” - Built-in IR Support | Programmable IR support to the Raspberry Pi with streamlined options. Works out of the box with the Argon ONE Remote. - Active Cooling | Software Programmable 30mm FAN via the Argon ONE software - Passive Cooling | Aluminum alloy top case acts as a giant heatsink connected to the CPU of the Raspberry Pi 4 - Cable Management | Repositioned all ports to the back of the Raspberry Pi 4 to highlight its sleek and modern design. Sources : https://www.argon40.com/argon-one-m-2-case-for-raspberry-pi-4.html