KEYESTUDIO Ethernet Shield W5100 Network Shield Micro-sd Card Slot Easily Connects to Internet for Arduino Mega 2560 R3 Starter Kit

Make sure you download the latest ArduinoIDE and just use the default libraries, don't download the ones on there site you will just end up wasting a ton of time and then find out it don't work and all you needed do was use the default libraries lol

With this Ethernet interface had tcp link and web page server working in 20mins

works well to connect to the internet

Does the job. Build quality is fine and the Ethernet port works as expected. Not managed to get the SD card reader to work yet which is why it loses a star - there is no documentation with the shield to say what the mac address is and any information on their web page is very basic. It would be helpful to have a basic program just to show you and test that it works. Otherwise fine.

My partner is an inveterate tinkerer and in currently in love with Arduino. This is an addon that is particularly good as it helps connect an Arduino board to the web - allowing for remote control of apps. Came packed in a compact box, has no paper manual but the online instructions are good (I like this eco-friendly way and wish more products came with no paper).

Overheated & failed to work.

It works fine. I bought the MEGA 2560 R3 from the same brand and it didn't fit perfectly, the pins bended over to fit in the board, it's not a big issue, they fit at the end, but you might expect a perfect fit from two product of the same brand.

This extension works great, I managed to connect through ethernet however it took quite a lot of googling to figure it out. For noobies I wouldn't recommend it but if you've tinkered with this kind of thing before it should be pretty straightforward.