In 2013, when I bought the Logitech G300, I was old and uneasy, and after 3 years, the right mouse button didn't work. It takes a lot of effort to press the right-click menu. Originally wanted to throw a re-buy a mouse, but the saying goes, waste is the biggest crime, obviously can spend a few dollars to change a micro-action will be able to solve the problem, why do we need to spend hundred to buy a new mouse?
I plan to rejuvenate it by changing the fretting to fight for a few more years!
After online inquiry, G300 uses Omron micro-motion, directly on a treasure, bought two Omron D2FC-F-7N (20M) white point (2.5 yuan / month) and two German CHERRY cherry DG2 black spots fretting It is said to be a gold contact and has a longer life than OMRON (4.9 yuan/piece, for the next preparation).
Considering that the left button's OMRON is working properly, this time it is intended to only change the right click's fretting. (Afraid that if the left and right buttons use different brands of jog, they will not feel the same, so this time with the micro-replacement of Omron, no cherry)
Let's start!
1. Use a hair dryer to blow hot pads, carefully tear open (after all, in order to reduce costs, I did not buy replacement pads)
2, screwdriver kit is essential
3, under the screws, the mouse is so easy to open
4, continue to remove the circuit board 
5. The electric iron that was dispensed in the high-school labor class was still alive. .
6. The most difficult part begins. Since the micro-motion has 3 pins, heating the solder joints of 3 pins at the same time, melting the solder, pulling out the micro-motion is the best way. But I only have such a soldering iron, only melt a solder joint, the other two solder joints firmly, can not pull down, and then go to melt the second, the first one has frozen, always looking at the other, tossing well For a while, it took the micromotion.
7, welding a new micro-motion, easier to remove than micro-motion. Nude test, you can use!
8, replace the shell, paste good mats. My G300 is back!
In fact, as long as a little hands-on, not afraid of trouble, you can spend small money to do big things, to avoid the production of another e-waste, everyone is responsible for protecting the environment, so easy!
SFP standardization:
SFP transceivers are regulated by a multilateral agreement (MSA) between competing manufacturers. SFP is designed according to GBIC interface, allowing a greater port density (the number of transceivers per inch on the side of the motherboard) than GBIC, so SFP is also called "mini-GBIC". The related small package transceiver (SFF transceiver) is smaller in size than SFP, but SFF is soldered to the motherboard as a pin through-hole device instead of being inserted into the side card slot on.
SFP transceivers have a variety of different transmission and reception types. Users can select the appropriate transceiver for each link to provide the "optical performance" that can be achieved based on the available fiber types (such as multimode fiber or single mode fiber). Available optical SFP modules are generally divided into the following categories: 850nm wavelength/550m distance MMF (SX), 1310nm wavelength/10km distance SMF (LX), 1550nm wavelength/40km distance XD, 80km distance ZX, EX or EZX with a distance of 120 kilometers, and DWDM. The SFP transceiver also provides a copper cable interface, so that host devices designed mainly for optical fiber communication can also communicate through UTP network cables. There are also wavelength division multiplexing (CWDM) and single-fiber "bidirectional" (1310/1490nm wavelength upstream/downstream) SFP.
Commercial SFP transceivers can provide rates up to 4.25 G bps. Several packaging forms of 10 Gbps transceivers are XFP, and a new variant "SFP+" which is basically the same as the SFP package.
Epon Sfp Module,Gpon Sfp Module,Px20++ Sfp,C++ Sfp
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