NASPi is a NUC-style NAS storage solution based on the latest Raspberry Pi 4, supporting 2.5-inch sata HDD/SSD.for All Raspberry Pi 4 ports are adjusted to the back through the X-C1 adapter board, built-in software safety shutdown and automatic power-on functions, and the use of PWM fans can dynamically adjust the fan speed according to the temperature of the CPU.The shell is made of all-aluminum alloy, CNC machined, and the surface is anodized.Colour: Blackmaterial: metalNASPi FeaturesAll aluminum alloy chassis pressLower button switch onPress and hold the button switch for 1~2 seconds to restartLong press the button switch for 3 seconds to achieve a safe shutdownPress and hold the button switch for more than 8 seconds to force shutdownDoes not support automatic power-on functionUASP only supports Raspberry Pi4, not TRIMSupport software safe shutdown (this function comes from X-C1)With PWM silent fan, the fan speed will be automatically adjusted according to the CPU temperature, you can also modify the script X-C1 onboard blue light key switch, X-C1 also supports external 4-pin switchSupport 9.8mm thickness 2.5 inch HDD/SSD, support 7mm or 9.5mm thickness HDD/SSDPackage Contents:1 x NASPi Case1 X X823 Expansion board1 x X-C1 Adapter board1 x PWM Fan1 x Connecting cable1 x Backup Acrylic Front Panel1 x ScrewPack AccessoriesOnly the above package content, other products are not included.Note: Light shooting 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.