Works as a router Stick

I bought the E3131 as a stick for the TP-Link TL-MR3420 router. I have tested the device only in this context. What is striking? Inside the box next to the stick is a quick guide. Not Doll, but sufficiently informative. Features are otherwise the eyelet for a ribbon (not included), which is hidden under the cap. Whoever thought up this position, can not have been sober. The second decision, which was taken in noise, is the design of the plastic cover over the slot for the SIM card. To open the fingernails must have exactly the right length. Too short? Then you have to call the neighbors for help. Too long? Then the manicure for repair work on the claw is required. Once you open the door, you will find the slot for a standard SIM. Of course, no Sim Adapter the stick is on micro- or nano-Sim, the one likely but nowadays need cases from 10 in 9. When adapter you will still need to be careful as he is pushed around. At the first start I made it wrong promptly. After this issue was resolved and I had the SIM PIN disabled, put the stick through the router without complaint connects with O2. In operation, the drive was very warm, but there was no impairment of connecting recognizable. Informed a krypitsche LED hinblinkt cheerfully about the connection status.
A special feature of the stick a micro SD slot adds even with. He will thus become memory card reader / USB storage. So you can save a second stick. For the router operation but that is irrelevant.

Conclusion
Info material ****
**** Processing
***** Features
Accessories *
Power *****

The Huawei E3131 you can buy so, but as a top recommendation it does not impose on itself. Who often exchanges the SIM between devices, should keep their hands (nails) of the device.