What is the difference between Gridseed ASIC and Scrypt ASIC If you mine in wemineltc pool you have probably noticed that there are two different stratum server for ASIC miners 
here are the urls 


So my question is that what is the difference between an gridseed asic and scrypt acis miner ??? 

And I will be thankful if you explain me that what is gridseed mean exactly
Gridseeds are small dual-mode miners offering SHA256 and Scrypt.



Gridseeds have a very low scrypt hashrate (&lt;400kH/s). The hashrate affects the share difficulty and therefore it's quite a good idea to offer a seperate mining port for low hashrate devices.

It seems there are so many gridseeds still out there that it's worth to mention that on the pools help page.