Usually 200 almost whatever you buy. I bought a couple hundred 1020 seeding trays there last year also. Shipping was about the same. We are in Europe. Might be cheaper shipping to US?
Including shipping it works out almost a third of the price of buying anywhere else.
I bought a 400 egg capacity Chinese red incubator from Alibaba.com. It’s from a verified manufacturer that has been on the platform for a few years and has trade assurance.
Dunno what the feeling is on Chinese incubators around here, but I’ll give my full report in a few months once I have...