Avocent SwitchView SC740 Dual Monitor 1x4 Secure DVI KVM



Replaced by: Avocent Cybex SC940
Alternative options: Contact Us

Ports: 4 Port
Video Output: Dual Monitor
Features: Audio

The Avocent SwitchView SC740-001 dual-head, 4-port, single-user KVM,  offers proven, secure access for any desktop environment where security is mandatory. NIAP validated to EAL2+, the SC740 secure KVM switch provides multiple levels of physical security, and controlled USB connectivity (limited to keyboard and mouse only). Consolidate multiple workstations of varying security classification levels with one keyboard, monitor and mouse without compromising network security.

The Avocent SwitchView SC740 switch includes multiple layers of security including tamper-proof hardware security at the desktop. In addition, the SC740 ensures that only the keyboard and mouse function on target computers, by constantly monitoring all devices attached to the console ports. The SC640 ignores communication from all other USB devices (such as flash drives, hard disk drives, cameras and printers) when switching data to the target. In situations where the only USB port(s) are those enabled on the target computer, the SwitchView SC switch will not introduce security vulnerabilities.

Avocent SwitchView SC740 Secure KVM Switch Back View
Avocent SwitchView SC740 Secure KVM Switch Back View

Avocent SC740 Features & Benefits:

  • NIAP Common Criteria validated to EAL2+.
  • Software Security. U.S. designed firmware: allows only keyboard and mouse human interface devices (HIDs) to switch to the target computers.
  • Physical security:
    • Tamper-evident tape: A visual indication of an attempt to gain access to the internal components of the switch
    • Locked memory: Prevents tampering and reprogramming of the firmware
  • Secure channels: Four fully secure channels isolated to 60db. Safely switch between computers operating at different classification levels without compromising network security.
  • Clears buffer: Automatically clears the keyboard buffer immediately after data is transmitted through the switch, so no data is ever left in the switch

Avocent SC740 Specifications:

Height 2.4 in. (6.1 cm.)
Width 10.4 in. (26.42 cm.)
Depth 9.2 in. (18.54 cm.)
Weight 4.0 lbs. (1.8 kg.)
Operating Temperature 32° to 104°F (0° to 40°C)
Storage Temperature -4° to 122°F (-20° to 50°C)
Operating Voltage 100 - 240 VAC
Power Frequency 50/60 Hz
Input Power 30W
Device Support  
Computers USB and single-head or dual-head DVI-I
Video Dual Head, Dual-link DVI-I, VGA (with adapter) maximum resolution 2560x1600 @ 60Hz
Peripherals USB keyboard USB mouse only, (per Common Criteria Protection Profile v2.1)
Approved Agency CE, UL 60950-1, CSA C22.2 No 60950-1, EN60950, FCC Part 15 Class B EN55022 Class B, EN55024 61000-3-3, VCCI Class B, C-Tick CISPR22, ICES-003
UPC / EAN Barcode icon
UPC 636430069012
EAN 0636430069012
Question: I need a KVM that will control 3-4 computers, with each computer having 4-6 monitors attached. Essentially, I have one bank of 6 monitors, all running at least 2560x1440 and the two 30" monitors running at 2560x1600. I want to attach my main WORK tower, my main TRADING tower, and my laptop (itself a Dell Precision high-end workstation) to these monitors and use ONE device to swap the KVM between the 3 computers. Can you help?
Answer: Thank you for your inquiry. While there are a couple quad-head KVM switches out there, this sounds like a fairly complex setup that may require several devices to function as desired. Please contact your KVM Switches Online representative at 1-877-586-6654 or via our online chat to discuss your project in greater detail.

Question: having integrating with the polycom 9000 no video display
Answer: Thank you for your inquiry. Due to the complex nature of user environments, detailed product support is beyond the scope of this simple FAQ. Having said that, here are a few ideas.

We are not familiar with the Polycom 9000, but this being a secure KVM switch, there may be issues connecting to an intermediate device. The KVM may not function if it sees devices other than standard monitors, keyboards and mice attached. Try connecting the monitors, keyboard and mouse directly to the KVM and see if video is displayed.

Another issue may revolve around the DVI connection. Ensure that the source and display are the same type of signal. If the attached servers are using digital video signals, the monitors (or Polycom 9000) also need to use digital video signals. Conversely, if the computers provide an analog signal, the attached devices must also be analog.

For more detailed support, we would recommend contacting the manufacturers. You can reach Avocent support here: http://www.emersonnetworkpower.com/en-US/Support/Technical-Support/InfrastructureManagement/Pages/default.aspx or visit Avocent's support community here: http://community.emerson.com/networkpower/support/avocent/.

Question: I need a KVM that will allow up to 4 different workstations with up to 5 displays (2 plasmas 50" PDP-50MXE10 pioneer sets + 3 NEC X554UNS 55" sets) all one workstation. Is this the right KVM product or do I needs something else?
Answer: Thank you for your inquiry. This particular unit will allow 4 separate computers to share a single mouse/keyboard and dual-monitor set up.

For a device that would allow 4 computers to use a single mouse and keyboard set up with independent monitors for each attached computer, you would need something like the Adder CCS-4USB (https://www.kvm-switches-online.com/ccs4usb-us.html) or the CCS-PRO4 (https://www.kvm-switches-online.com/ccs-pro4-us.html).

If you need each of the 4 workstations to able to access any one of the five monitors, that becomes a more complex solution, which may require several pieces of equipment to accomplish.

Depending on your particular requirements, there may be several devices that meet your needs. So that we can better assist you, please give us a call at 1-877-586-6654 or via our online chat feature to discuss your project in greater detail.

Question: I need a KVM that will control 4 Computers. Using this KVM Switch user shall able to select a computer and work. Hence from 4 computers will be connected to KVM Switch and from KVM Switch it will be connected to Input/Output devices such as Monitors, Keyboard, Mouse. Using this KVM Switch, the user shall select a computer and operate a system. Please let kow suitable model for my application.
Answer: Thank you for your inquiry. There are a number of devices that will work for your needs. Which one is best is largely based on personal preference and dependent on a number of application specific questions. A number of 4-port KVM switches can be found here: https://www.kvm-switches-online.com/4-port-desktop-kvm.html.

If you would like further assistance, please contact our sales team at 1-877-586-6654 or via our online chat feature so we can better suggest an appropriate KVM switch.

Question: I need a KVM for the DVI switching video ability for a projector system. There are no keyboards or mice. Normally the KVM switch requires signal on the USB port to detect the port. Which KVM will get around this?
Answer: Thank you for your inquiry. You are correct, typically, a KVM requires a keyboard and mouse to operate. However, if you are not connecting any USB devices, you may be interested in looking for a DVI video only switch.

Please Contact your KVM Switches Online representative at 1-877-586-6654 or via our online chat feature to discuss your project in greater detail.

Question: What cabling comes in the box with the KVM?
Answer: Thank you for your inquiry,

The Avocent SC740 includes only the KVM Switcher unit. We have all the manufacturer specified accessories and cables listed conveniently on this page: www.kvm-switches-online.com/sc740.html

Question: Is the USB port USB 2.0 capable? Looking for this I/O with USB-2-0 capability.
Answer: Thank you for your inquiry. The Avocent SC740 does support USB 2.0. It should also be noted that the available USB ports are only available for keyboard and mouse input and all other devices plugged in, such as flash drives, are ignored.

Question: will your product support a USB 3.0 touch monitor as an input device plugged into the mouse/keyboard port ?
Answer: Thank you for your inquiry,

NIAP / common criteria certified secure KVMs by design will not support any USB peripheral device - besides keyboard, mouse, and SmartCard (CAC) devices.

For a KVM switch with USB 3.0 touch monitor support, you may want to consider the Avocent SV240 instead. Please note however, the SV240 is not certified secure, and would support most touch screen devices via the USB hub port(s) rather than through the native mouse/keyboard port.

Question: I have 1 DELL Latitude E5550 workstation that I want to have 3 displays active on at one time. I was told I could do this using 2 SC740s, but I am having no success so far. Any info that would assist?
Answer: Thank you for your inquiry,

I have not heard of and wasn't able to verify a way in which you could chain two SC740s to act as a Triple-monitor KVM. You could theoretically create a 7-port dual-monitor KVM by connecting one of the output port of one SC740 to a source input port on the other SC740 (note, this is a bit clunky- you would need to switch to that port to be able to switch ports on the other KVM switch)..?

For a secure 4-port triple-monitor KVM, you may want to consider the SDVN-4Q-P instead (it's quad-monitor but you don't need to plug in the 4th monitor). If security certification is not required, you may want to want to consider the AV4PRO-DVI-TRI 4-port triple-monitor DVI KVM instead.