Press release
QNAP Security Launches New 4-drive Rackmount VioStor NVR VS-4100U-RP Pro+ Series Featuring High Reliability

Taipei, Taiwan, August 29, 2013 – QNAP® Security today launched new business-class 4-bay, 1U rackmount VioStor NVR VS-4100U-RP Pro+ series, available in 8, 12 and 16 channels featuring high reliability. Powered by Dual-core Intel® processor and 4GB DDR3 memory, the new series deliver quality performance with up to 250 Mbps throughput to ensure steady recording of multiple megapixel IP cameras. Moreover, the HDMI output and hardware decoder provide the ability to deliver up to 200fps Full HD local display.

The VS-4100U-RP Pro+ series support up to 16TB raw storage capacity to accommodate high quality H.264, MPEG-4, M-JPEG, and MxPEG video recording. “The VS-4100U-RP Pro+ series satisfy the requirements of SMB users who desire high performance network video recorders coupled with excellent reliability and features,” said Amily Fang, product manager of QNAP Security. “The VS-4100U-RP Pro+ series delivers quality performance coupled with abundant features for small to medium-scale surveillance tasks.”

Featuring VioStor NVR firmware v4.1.0, the VS-4100U-RP Pro+ series support smart recording, storage expansion, and multi-stream function. The smart recording effectively avoids the constant storage consumption at all time, but achieves greater storage efficiency and boost recording quality when alarm events happen. By installing the ‘StorageExpansion’ app (QPKG) on the Turbo NAS, administrators can connect the VS-4100U-RP Pro+ series with the Turbo NAS via network to flexibly enlarge the total storage capacity of VioStor NVR. The multi-stream support enables administrators to flexibly define multiple video streams (supported by specific camera models) according to bandwidth resources and number of live-view channels.

The VS-4100U-RP Pro+ series provide professional features for business environments, including fisheye dewarping function, multi-server monitoring, advanced event management, and more. The fisheye dewarping function is supported for specific fisheye cameras and cameras with panomorph lens on handling remote monitoring, playback and local display. Multi-server monitoring enables users to connect multiple VioStor NVRs and monitor up to 128 IP cameras with one browser on remote computers. Advanced event management enables administrators to set 5 types of alarm event, and the system will respond with assigned event actions when an event is triggered, keeping administrators stay alerted immediately.

The VS-4100U-RP Pro+ series support Windows and Mac platforms with QNAP’s Surveillance Client software for Windows® and for Mac®, and the VMobile surveillance app for iOS®, Android™ and Windows Mobile 6.1 to 6.5 devices. Users can manage the VioStor NVR via the web-based administration interface using Google Chrome, Microsoft Internet Explorer or Mozilla Firefox browsers, or monitor linked IP cameras by mobile devices anytime and anywhere on the go.

The VioStor NVR is now compatible with over 2,100 IP camera models of various popular brands, offering businesses high flexibility in deploying an ideal surveillance solution.


The VS-4100U-RP Pro+ series are now shipping. Learn more about the new models and other QNAP VioStor NVR lineup at

Storage expansion solution is available for VioStor NVR Pro(+) series with firmware v4.1.0 or newer and the Turbo NAS TS-x69, x79, x70 series with firmware v3.8.3 only.

For more information about the compatible IP cameras with firmware v4.1.0, please visit


About QNAP Security

QNAP Security, the world's first Linux-embedded NVR developer has implemented its award winning storage and RAID technologies to offer its most innovative local display standalone NVR. The system not only ensures remarkable stability on remote monitoring, recording, and surveillance tasks under diverse environments but also renders great simplicity. In addition, the QNAP solution allows users to choose suitable network cameras for various situations instead of being restricted to the resolution of traditional CCTV. For more information about VioStor NVRs, please visit


Media contact
Asia - Taiwan QNAP Systems, Inc.
3F., No.22, Zhongxing Road, Xizhi District, New Taipei City, 221, Taiwan
TEL: +886-2-2641-2000
FAX: +886-2-2641-0555