Marshall Electronics CV-420-27X 4K UHD IP Camera | 27x Zoom HEVC/SRT

Quick Overview
The Marshall CV-420-27X is a high-performance 4K UHD IP camera with 27x optical zoom, HEVC/H.265 compression, and SRT streaming, delivering reliable low-latency video for robotics, UAV, surveillance, and broadcast applications.

The Marshall CV-420-27X (CV42027X) is a professional-grade 4K UHD IP streaming camera built around a 1/2.5" Sony IMX317 8.57MP sensor, delivering ultra-sharp video up to 3840×2160p at 59.94fps.

Designed for both broadcast workflows and embedded vision integration, this camera combines long-range optical zoom, low-light performance, and multi-protocol IP streaming into a compact, flexible platform.

With HEVC (H.265) compression and SRT (Secure Reliable Transport) support, the CV-420-27X ensures high-quality, low-latency video transmission across unstable or bandwidth-limited networks, making it ideal for remote systems, UAVs, and distributed surveillance deployments.

The camera supports simultaneous IP and HDMI/SDI outputs, while a single Ethernet connection enables video, control, audio, and power (PoE)—simplifying system design and reducing cabling complexity.

Key Features:

  • 4K UHD up to 3840×2160p59.94
  • 1/2.5" Sony IMX317 8.57MP CMOS sensor
  • 27x optical zoom (5.56mm–150.29mm)
  • HEVC (H.265) / H.264 compression
  • SRT (Secure Reliable Transport) for low-latency streaming
  • Simultaneous IP + HDMI + 3G/12G-SDI outputs
  • PoE (Power over Ethernet) – single cable deployment
  • Dual stream (main/sub) for flexible bandwidth management
  • Wide dynamic range (WDR) and 3D noise reduction
  • VISCA / VISCA over IP / ONVIF control support
  • Low-light performance (~10 lux) for challenging environments

Applications:

  • UAV / Drone Imaging Systems
  • Robotics & Embedded Vision
  • Long-Range Surveillance
  • Remote Monitoring Systems
  • Broadcast & Live Production
  • Courtroom & Government Recording
  • Industrial Inspection & Observation
  • House of Worship / Corporate AV
  • Traffic & Perimeter Security

FAQ

Is the CV-420-27X good for UAV or drone systems?
Yes. Its SRT streaming, PoE capability, and compact zoom block design make it suitable for UAV and remote deployments where bandwidth and latency are critical.

Does this camera support low-latency streaming?
Yes. With SRT and HEVC, it is optimized for lower latency compared to standard RTSP H.264 setups, especially over unstable networks.

Can it output video to multiple systems at once?
Yes. It supports simultaneous IP, HDMI, and SDI outputs, allowing integration into hybrid workflows.

Is it suitable for long-range surveillance?
Absolutely. The 27x optical zoom (up to 150mm) enables detailed imaging over long distances without relying on digital zoom.

Sensor1/2.5" 8.57MP CMOS (Model: IMX317)
Optical Zoom27x
Digital Zoom12x
Angle of view (H)60°
Vertical Viewing Angle35°
Diagonal Viewing Angle68°
ApertureF1.66~F4.98
Focal Lengthf=5.56mm~150.29mm
Focus DistanceWide:1m ~∞ / Tele:1.5m ~∞
MTFWide: Center >=1100, Corner >=900
Tele: Center >=900, Corner>=700
Field of ViewWide Horizontal viewing angle=60° (+/-5%)
Tele Horizontal viewing angle=3.2°  (+/-5%)
Minimum Environmental illumination10 lux
Camera System 
StreamDual Stream (Main/Sub) / Webpage
Streaming ProtocolRTSP / RTMP / RTMPS / MPEG-TS/ SRT/ Dante Ready
Video CompressionHEVC (H.265) / AVC (H.264)
Audio CompressionG.711 / AAC
Preset256
Preset SpeedNA
Focus SystemAuto/ One-Push AF / Manual
Electronic shutter1/1 to 1/10000 sec
Exposure ControlAuto / Shutter Pri / Iris Pri / Manual
Gain ControlAuto, Manual
Brightness controlYes
3D NRYes
WDRYes
Backlight CompensationYes
White BalanceAuto, Manual R/B Gain
Flip / MirrorYes
Firmware UpdateOperation on Webpage
Output Resolution 
HDMI2160p : 59.94 / 50 / 29.97 / 25 fps
1080p : 59.94 / 50 / 29.97 / 25 fps
1080i : 59.94 / 50 fps
720p : 59.94 / 50 / 29.97 / 25 fps
12G-SDI2160p : 59.94 / 50 / 29.97 / 25 fps
1080p : 59.94 / 50 / 29.97 / 25 fps
1080i : 59.94 / 50 fps
720p : 59.94 / 50 / 29.97 / 25 fps
Stream4K : 59.94/50/29.97/25 fps
1080p : 59.94 / 50 / 29.97 / 25 fps
1080i : 59.94 / 50 fps
720p : 59.94 / 50 / 29.97 / 25 fps
360p :  29.97 / 25 fps

Webpage :
PTZ: MJPEG 360p
Interface 
Line Inx1 ; 3.5mm phone jack
Line Outx1 ; 3.5mm phone jack
Audio OutputHDMI / 3G-SDI / RTSP / RTMP / SRT
Audio TypeStereo, Unbalanced
 Audio Compression FormatAAC
HDMIx1
Audio OutputYes
HDMI Color FormatRGB / YUV422
3G-SDIx1
Audio OutputYes
SerialRS232
RS232 InRS232 In ; Mini-Din x1
RS232 OutRS232 Out ; Mini-Din x1
Network 
Ethernet RJ45 Portx1 ; 1Gbps
Number of clients (connection)RTSP 1080P60 *5
Network ProtocolDHCP, DNS, HTTP, HTTPS, IPv4, NTP, RTSP, RTCP, RTP, TCP, UDP
Network SecurityNo Critical issues
Camera control 
Serial ControlRS-232 In x1 ; RS-232 Out x1
ProtocolVISCA
Baud Rate9600 / 38400
NetworkWebpage
HTTP CGI
HTTP API
Onvif Profile S
VISCA over IP
General 
Tally LightYes ; Red
Service ButtonNA
Power SupplyPOE ; IEEE 802.3af
DC 12V/3A ; EIAJ Type 4
Power consumptionPoE : ≦19W ; DC : ≦17W
Environmental Spec 
Operating Temperature0~40°C
Operating Humidity10% ~ 90 %
Storage Temperature-20°C ~ +60°C