Owner's manual
SeaLATCHâ„¢ USB 
The 2123 integrates a patent-pending SeaLATCH USB port, which is fully 
compatible with standard USB cables. When used with SeaLATCH locking USB 
cables, the metal thumbscrew provides a secure metal-to-metal connection and 
prevents accidental cable disconnection. 
Sealevel incorporates SeaLATCH locking USB ports on many USB I/O devices. 
Accidental cable disconnection is the most common point of failure with USB 
industrial I/O devices and SeaLATCH cables and connectors prevents that while 
being fully compatible with standard USB cables. 
The image below shows the 2123 secured with the included SeaLATCH cable. 
© Sealevel Systems, Inc. 
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SeaLINK.SC User Manual 










