VIANS VI-S203 80KG Concealed Door Closer – Hydraulic Fire Door Closer with Hold-Open, Adjustable Speed, EN3-4 ALNABAA_NS PCIe Gen5 x4 Transmission Interface:

PCIe Gen5 x4 Transmission Interface: Compliant with NVMe 2

Operation Range: 10 m

RGB lighting with static / breathing / comet effects & music mode

Tracking Speed: 350 lPS

Features: Plug into USB-C port to connect with wired Ethernet at home

VIANS VI-S203 80KG Concealed Door Closer – Hydraulic Fire Door Closer with Hold-Open, Adjustable Speed, EN3-4 ALNABAA_NS PCIe Gen5 x4 Transmission Interface:The VIANS VI S203 is a concealed hydraulic door closer designed for fire doors and commercial applications. Installed within the door leaf and frame, it provides controlled and smooth door closing while maintaining a clean appearance and reducing vandalism risk. Product Parameters Model VI S203 Product Name Big Door Closer Lock Size 205 42 64 mm Fix Size 188 19 mm Max Door Weight 20 40 kg Max Door Width 1100 mm Max Opening Angle 180 Spring Power EN34