The first and the best in physical security
SMARTKEEPER.
A leader in system physical security
A system physical security brand that physically blocks the I/O ports of computing systems and network equipment and controls the devices in use
- 3,500+
- Deployed at key sites across government, military, public sector, power, manufacturing, and moreAs of 2024
- 45export countries
- Exported to 45 countries, including Japan, the US, Singapore, and EuropeAs of 2024
- 2010years
- Developed USB Port Lock · Entered the system physical security business

In-house manufacturing capability
USB, Network, System
Physical security for USB, network, systems, and more
USBUSB security
NetworkNetwork security
SystemSystem physical security
OtherOther security
$1,000,000
Export Tower Award (2024)
44
Physical security patents (Korea and overseas)
Products.
Port-by-port physical security, from networks to PCs and devices

One key to control them all
Single key controls everythingOne key unlocks all of the products below.
Network Port Lock PlusNetwork Port Lock PlusSwitch · RJ45
LAN Cable Lock PlusLAN Cable Lock PlusLAN Cable
Secure LAN Cable CouplerLAN Cable Security CouplerLAN Cable
LAN Cable Link LockNetwork cross-connection prevention devices and dedicated cablesLAN Cable
Fiber Optic Module Lock PlusFiber Optic Module Lock PlusFiber Optic Module
Fiber Optic LC Cable Lock DualFiber Optic Cable Lock (LC) DualFiber Optic Cable
QSFP Port LockQSFP Port LockQSFP
C Link LockC-Type Link LockUSB-C
USB-C Port LockUSB-C Port Lock (Lock Key Mini compatible)USB-C
USB Port LockUSB Port LockUSB-A
Link LockLink LockUSB-A
Link On 3Link On 3USB-A
PC Lock (Dial type)PC Lock (Combination)Desktop
Notebook Lock (Dial type)Laptop Lock (Combination)Laptop
Key customers.
Government, military, public sector, power, manufacturing, and more
3,500+ Deployed at key sites
Telecom & networks
IDCs, network service providers, and more
200+


Technology & manufacturing
Manufacturing sites such as shipbuilding, displays, and semiconductors
200+


Financial institutions
Banks, brokerages, insurers, and more
150+


Military & defense
Defense facilities, including the army, navy, and air force
80+






Public institutions
Government agencies and facilities, including federal governments and presidential offices
200+

Power plants
Nuclear, thermal, and hydroelectric power plants
150+





Water and wastewater
Water resource facilities
60+

Rail & roads
Transportation infrastructure
70+

Transportation, airports & shipping
A global logistics company built on sea and land freight
70+
