Magnetic Design: Magnetic Removable Top And Well Designed GPIO Header M.2 Expansion Slot: Supports M.2 Modules Like M.2 SSD, Which Is Then Connected To The Pi By USB Adapter Active + Passive Cooling: The Whole Case Top Acts As A Passive Cooling For The , Combined With The Included Cooling Fan And Multiple Vents, Brings Excellent Cooling Effect Neat : All Of The Ports Are Accessed At The Back, Minimal Cable Clutter Proper Bottom Design: Two Vents And Four Nonskid Feet, Simple But Useful The Argon ONE M.2 Case ups the ante by providing (1) two full-sized -compatible ports, (2) Power Management Modes that allows for automatic booting, (3) Built-in IR support with streamlined for configuration (4) Integrated M.2 SATA SSD support through the USB 3 Ports of the 4. Argon ONE M.2 Case extended support for M.2 SATA SSDs allows you to maximize the true potential speeds of your 4. You will now be to boot via an M.2 SATA SSD for faster boot times and larger storage capacity compared to the traditional -SD Card. Argon ONE M.2 is UASP Supported for the 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 Key-B and Key . SSD Card:128G Colour:Black Material:aluminum alloy Package Contents: 1 * Argon ONE M.2 Aluminum Case 1 * SSD Card 1 * Adapter Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.