Black Box ServSwitch Secure

USB Keyboard & Mouse Support to Control Your Networks

Low Price Guarantee


What's special about this secure KVM?

  • Allows you to keep your computers separate, but use just one keyboard, monitor, and mouse to access up to four computers
  • Automatic keyboard and mouse booting for IBM PC compatibles
  • The robust metal case provides excellent shielding against EMI/RFI
  • Click for More Features

The Black Box ServSwitch Secure allows you to enjoy USB keyboard and mouse support to control your public and private networks.  Enables you to keep your computers separate, but use just one keyboard, monitor, and mouse to access up to four PS/2 or USB-style computers. The ServSwitch secure enables you to keep your secure network and nonsecure network computers separate, while only having to use just one keyboard, monitor, and mouse to access both. It also enables you to switch between computers with just the touch of a button. It's so secure that you can use this switch to control multiple computers of varying security levels from single workstations.


BB-SW721A-R2 ServSwitch 2 to 1 2.3"H x 8.8"W x 4.9"D
(5.8 x 22.44 x 12.4 cm)
3 lb. (1.4 kg)
BB-SW722A-R2 ServSwitch 4 to 1 2.3"H x 8.8"W x 4.9"D
(5.8 x 22.44 x 12.4 cm)
3 lb. (1.4 kg)

The ServSwitch is permanently hard wired. Every circuit is soldered down and there is no flash ROM. There is no way to use software to access one CPU from the other or to access one network from the other.
You can connect both USB and PS/2® CPUs to the ServSwitch, and boot them all simultaneously, or boot them remotely from your PC, making switching among CPUs easy.

  • NSA tested and TEMPEST approved for and by the U.S. Air Force. Other agencies under review for approval
  • 2 or 4-port secure KVM switch that supports both PS/2 or USB-style keyboards and mice
  • Non-upgradable ROM for security
  • Provides separation of computers connected to different networks
  • Ideal for use in secure environments
  • Switch from your keyboard or the switch’s front panel
  • 2 Year Double Diamond Protection


Maximum Distance:

Cable length: 20 ft. (6 m)
VGA with coax cable: 100 ft. (30.4 m)

Maximum Resolution:

With standard cable: 1024 x 768
With coax cable: 1280 x 1024

System Requirements: CPU: IBM PC/AT, PS/2, or compatible

Both Models: (1) 6-pin RJ-11, (1) 5-pin DIN
SW721A-R2: (3) DB25 F
SW722A-R2: (5) DB25 F

Indicators: LEDs: (1) Power; (1) CPU Selected, (1) CPU Power per port
Power: 115 VAC, 60 Hz
Operating Temperature: 0° C - 45° C
Size: 2.3"H x 8.8"W x 4.9"D (5.8 x 22.4 x 12.4 cm)
Weight: 3 lb. (1.4 kg)


The Double Diamond Warranty is our no-questions-asked warranty that protects your BLACK BOX® brand products from accidental damage, including drops, water, and power surges. Most products come with a one- or two-year warranty. Some products, such as copper cables, manual switches, cabinets, and racks, are guaranteed for life! During the warranty period, Black Box will repair or replace your damaged equipment within one week of receipt at NO CHARGE!






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