FAQ:  1. Is this small LCD monitor compatible with the 2.4-inch AX206 photo frame?  Answer:  The use of aida64 under Windows is completely compatible, and the Lcd4Linux software package (supporting 32-bit and 64-bit) that needs to be recompiled by myself under Linux is also compatible.  Therefore, this LCD monitor can be used in various Linux systems such as Windows, Qunhui NAS, openwrt router, and Raspberry Pi.  Without case version suitable for directly installing on the chassis.  2. Have technical support?  Answer:  (1) Provide a certain level of technology, provide a basic simple tutorial, and use Qunhui NAS. Lcd4linux installation tutorial, etc. (2) Provide several configuration themes I collected online. Convenient to get started as soon as possible.  3. How many USB ports does this LCD monitor have? Is horizontal screen display supported under Windows?  Answer:  (1) Supports 4 USB ports, two of which are MicroUSB on the side of the product, and one MicroUSB and a 4PIN 2.54 pin USB on the back of the product.  (2) Supports horizontal screen display under Windows, just plug in a jumper cap.  4. Are there any accessories to send?  Answer: (1) Because this product is assembled and welded manually by myself. The color is OK.  (2) The default is a MicroUSB cable.        5. Is it easy to fix to the chassis?  Answer:  (1) You can buy double-sided foam tape to fix the box to the chassis.  (2) Remove the box to keep the motherboard module, use the copper pillars and M3 screws fixed in the box. Punch holes in the chassis and fix it directly on the chassis.  (3) Put the box directly on the case for use.  (4) The delivered permanent magnet small foot cup is sucked to the iron case (the default is not delivered, it is easy to crush the screen).