No logo HDW4231EM-AS on aliexpress is $99. This is quite a bit lower than what I thought they were. Are these legit or knock offs?
Aliexpress.com : Buy Dahua IPC HDW4231EM AS replace IPC HDW4431EM AS IP Camera Built in Mic 2mp Starlight IR Eyeball Network Camera IPC HDW4431EM from Reliable ip camera suppliers on Eagle Vision Security
Aliexpress.com : Buy Dahua IPC HDW4231EM AS replace IPC HDW4431EM AS IP Camera Built in Mic 2mp Starlight IR Eyeball Network Camera IPC HDW4431EM from Reliable ip camera suppliers on Eagle Vision Security