For many old-fashioned notebooks, the USB3.0 interface is usually not configured. In the face of the current data transmission requirements of dozens of GB, USB2.0 is stretched.
· ExpressCard——Chicken Ribs on Notebook
I believe many friends are not unfamiliar with the ExpressCard interface. Basically, most notebooks produced two or three years ago will be equipped with such an interface. However, this interface is not convenient for USB use and supports fewer devices, so it is gradually forgotten by everyone. , Has become a "chicken rib" on the notebook.
The purpose of our article is to make this "chicken rib" which is a pity of food and tasteless, into a "chicken leg" that everyone loves. Although ExpressCard has various shortcomings, it has a very high data transmission capacity. It is a pity for users to give up this ability. We have to find a way to make it "new spring".
· What is ExpressCard?
ExpressCard technology is a new technical standard published by the PCMCIA Association in spring 2003. This technology is more used in notebook computers to provide thinner, faster, and lighter expansion modules. Like USB, it is a serial data transmission interface that supports hot swapping. Usually many notebooks produced before 2010 will be equipped with such an interface. It is understood that the first notebook using this interface is the HP Pavilion zd8000 launched in November 2004.
ExpressCard interface
ExpressCard interface of two specifications
The ExpressCard interface is divided into two specifications, one is the ExpressCard / 34 with a width of 34mm, and the other is the ExpressCard / 54 with a width of 54mm, both of which are 75mm in length and 5mm in thickness. The 34mm module can be compatible with the 54mm slot, but not vice versa. The maximum theoretical transmission speed of ExpressCard is 4Gb / s, which was also considered "extreme speed" at the time.
· How fast is USB3.0?
USB3.0 LOGO
Our purpose this time is to make the ExpressCard interface into a USB3.0 interface, then we still need to introduce the relevant technical indicators of USB3.0. The USB3.0 standard was officially released at the end of 2008, and its theoretical maximum transmission speed is 5Gb / s. Before 2011, only a few high-end notebooks will be equipped with USB3.0. Recently, USB3.0 has gradually begun to spread rapidly. Many mainstream price notebooks are also equipped with such interfaces.
Well, the preliminary content is here, let's enter the actual combat link.
· Upgrade weapons-ExpressCard expansion card
The device we are implementing this conversion is this ExpressCard expansion card. In fact, it is not a new product. This device has appeared since a few years ago, but many old notebook users may not even know that this product is available. We are here again to introduce this extension method to you. In addition, another main purpose of this article is to test the actual transmission speed of this expansion card and compare how much faster it is than USB2.0. I believe this is also the most concerned issue for everyone.
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