Hi,
Yes, Nokia 3110 Phone supports MicroSD. You can check my shop (http://stores.ebay.in/SNRAMA) as I am selling the same item.
There are other sellers also and you can search for the same at Mobile Accessories category.
Also you can try Want it Now.
http://pages.ebay.in/wantitnow/
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With Regards,
Navaneeth (snrama)
😉
---------------
With Regards,
Navaneeth (snrama)
😉