Nice to meet you. Wish you have a good start of this week!
Should you have any enquiries on the readers, please let me know.
You may see if you want to purchase some readers for testing.
I think ACR1281S-C1 may more suitable for you. You may take a look on the following website,
http://www.acs.com.hk/en/products/187/acr1281s-c1-dualboost-ii-serial-dual-interface-reader/
You need to get 5000 pcs this year? Or any schedule of you project? So that we could see how we could cooperate in the future