又大又粗又硬又黄又爽的视频|大伊香蕉精品二区视频在线|亚洲精品国产精品乱码不下|日本永久免费啪啪网站,亚洲午夜囯产精品中文字,久久久久久亚洲精品成人,久久国产精品一区二区三区四区

1. temperature. Its quality directly affects the service life of the cabinet you purchased, and may also lead to the cabinet often failures, which can not guarantee its normal operation. So when we buy the cabinet, we must check the fan inside the cabinet, because it is an important tool to solve the temperature. Generally, we require the fan to blow directly to or through the processor.

2. Extension capability. When we buy some cabinet PDUs, we must buy the chassis chassis with enough space. The reason why you buy the chassis chassis with enough space is that the back-up network expansion is used to add more hard disk boxes and other electronic devices to it.

3. Sharp traces. We inspect the inside of the cabinet with sharp edges. This step is important to consider the technical safety issues when we want to upgrade in the future.

4. Safety. Valuable items are usually placed in the power supply of the cabinet, so it must be checked that the cabinet has original locks.