This product is either discontinued or we cannot get that from suppliers.
Dahua DH-IPC-HDW2831TP-ZS-27135-S2 8mp Starlight Ip Turret Motorized Camera, Sensor: 8MP, 1/2.7" CMOS, Effective Pixels: 3840 (H) × 2160 (V), ROM: 128 MB, RAM: 256 MB, Electronic Shutter Speed: Auto/Manual 1/3 s–1/100,000 s, Focal Length: 2.7 mm–13.5 mm, WDR: 120 dB.
With upgraded H.265 encoding technology, Dahua Lite series network camera has efficient video encoding capacity, which saves bandwidth and storage space.