This is the board
This is the NFC reader/writer
Not much i ordered mine at amazon https://www.amazon.com/Arduino-A000066-ARDUINO-UNO-R3/dp/B008GRTSV6/ref=sr_1_1?dchild=1&keywords=arduino+uno&qid=1613833599&sr=8-1
And The HostShield Is Sold Out on amazon for now :(