Hollyland Syscom 421S Wireless Audio & Video Transmission System

The Hollyland Syscom 421S is an 1800ft wireless video and audio transmission system that features up to 4 transmitters on the same RF channel.

Available Configurations

• 2 Transmitters / 1 Receiver
  • Transmitter: 2
  • Receiver: 1
  • 5GHz antenna
  • 7" magic arm
  • OTG cable: 1
  • DC conversion cable
  • RS485/RS422 interface cable
  • Power adapter: 1
• 4 Transmitters / 1 Receiver
  • Transmitter: 2
  • Receiver: 1
  • 5GHz antenna: 25
  • 7" magic arm: 4
  • OTG cable: 1
  • DC conversion cable: 4
  • RS485/RS422 interface cable: 5
  • Power adapter: 1

Hollyland Sysco m421S Features

• 4 TX Synchronized A&V Transmission
• Up to 1800ft range
• 0.07S latency
• SDI+HDMI I/O
• 1080P full HD
• RS422/RS485/LAN Control
• TALLY control
• RTSP streaming

• 421S wireless audio & video transmission system1

• Transmitter
  • Interface
    • SDI input BNC female
    • HDMI input type A female
    • 3.5mm tally output
    • 4 antenna RP-SMA male
    • DC power input
    • USB type-C
    • LAN
    • RS485/RS422
  • Supply Power Range7~36V DC
  • Power Consumption
  • <12W
  • Weight
  • 431.5g (external antenna excluded)
  • Dimensions(LxWxH)
  • 88x30x144mm (external antenna and battery plate excluded)
  • I/O Video Format
    • HDMI: 480P60Hz, 576P50Hz, 720P50/60Hz, 1080i50/60Hz, 1080P24/25/30/50/60Hz
    • SDI: 720P50/60Hz, 1080i50/60Hz, 1080P24/25/30/50/60Hz
  • Frequency
  • 5.1~5.9GHz
  • Transmission Power
  • MAX 22dBm
  • Receiver Sensitivity
  • -90dBm
  • Lowest Transmission Latency
  • 0.07s
  • Bandwidth
  • 40MHz
• Receiver
  • Interface
    • SDI1, SDI2, SDI3, SDI4 Output (BNC female)
    • HDMI1, HDMI2, HDMI3, HDMI4 Output (Type A female)
    • 4 Antenna (RP-SMA male)
    • DC power input
    • USB Type-C
    • LAN
    • RS485/RS422
  • Supply Power Range18~36V DC
  • Power Consumption
  • <32W
  • Weight
  • 1621g (external antenna excluded)
  • Dimensions(LxWxH)
  • 148x62x212mm (external antenna and battery plate excluded)
  • I/O Video Format
    • HDMI: 480P60Hz, 576P50Hz, 720P50/60Hz, 1080i50/60Hz, 1080P24/25/30/50/60Hz
    • SDI: 720P50/60Hz, 1080i50/60Hz, 1080P24/25/30/50/60Hz
  • Frequency
  • 5.1~5.9GHz
  • Transmission Power
  • MAX 22dBm
  • Receiver Sensitivity
  • -90dBm
  • Lowest Transmission Latency
  • 0.07s
  • Bandwidth
  • 40MHz