Products of Smartkeeper

Smartkeeper: Physical Port Blockers, USB Security & Interface Protection for IT Security

Smartkeeper specialises in physical IT security solutions: USB port blockers, RJ45 interface covers, connector locks and interface security systems for professional enterprise use. At Lieske Elektronik, IT departments, system houses and security managers can source the complete Smartkeeper range for the physical protection of IT infrastructure.

B2B

IT Security Specialist

20+

Port security solutions

✓

GDPR compliance support

★

Endpoint Security

Smartkeeper – Physical Interface Security for Professional IT Environments

Smartkeeper is a manufacturer specialising in physical IT security, developing solutions for the mechanical protection of USB, RJ45, HDMI and other interfaces on computers, servers, network devices and peripherals. The core concept: interfaces that must not be used are physically blocked – as a complementary measure to software-based endpoint security.

The portfolio includes USB port blockers in various versions (including key management systems), RJ45 network port blockers, locks for USB-C, DisplayPort and HDMI connectors, and complete port lock kits for equipping entire workplaces or server rooms. Smartkeeper products are deployed in enterprises, public authorities, hospitals and data centres to prevent unauthorised data access and uncontrolled data transfer via interfaces.

Lieske Elektronik stocks Smartkeeper products for direct B2B procurement. IT security managers and system houses receive expert advice, volume quotes and kit solutions at vertrieb@industry-electronics.de.

Compliance & Applications

✓	GDPR compliance (physical data protection)
✓	ISO 27001 endpoint protection (physical)
✓	CE conformity
✓	Key management system (Key Control)
✓	IT security policy compliant
✓	Multi-colour blockers (visually distinguishable)

Product Lines

Physical interface security for USB, RJ45, HDMI and other IT ports

USB Port Blockers & USB Port Lock Systems Mechanical plugs to block unused USB-A and USB-C ports on computers, servers and network devices. Available as simple dummy plugs (without key) and as key systems (one key opens/sets multiple blockers) for managed port blocking in enterprise environments. Sets from 10 units.		RJ45 Network Port Blockers Physical dummy plugs for RJ45 network sockets on switches, network devices and computers – prevent unauthorised access to network connections and protect free ports from misuse. Sets for individual devices or entire patch panels; key management system available for managed environments.

HDMI, DisplayPort & Video Interface Security Port blockers and interface locks for HDMI, DisplayPort, VGA and DVI connectors – prevent unauthorised connection of external monitors, projectors or storage adapter dongles at confidential workstations. An essential measure in the context of IT security audits and data protection concepts.		Port Lock Kits & Complete Solutions Complete packages for physical port security of individual workstations or entire server rooms: combined kits with USB, RJ45 and video port blockers plus key system. Ideal for IT security managers implementing consistent, documentable interface protection across the entire organisation.

Laptop Locks & Cable Security Kensington Lock-compatible theft-prevention locks and cable locks for laptops, monitors and peripherals. Extends the portfolio with mechanical theft protection for mobile and stationary IT equipment in offices, training rooms and publicly accessible work areas.		Key Systems & Key Control Smartkeeper key systems enable controlled release of port blockers by authorised personnel. One key opens and sets all compatible blockers of the same key class – important for IT departments that need to grant maintenance access without compromising the security status.

Typical Application Areas

Smartkeeper solutions for physical IT security in enterprises, public authorities and critical infrastructure

⚡ Data Centres	► Banks & Insurance	★ Public Authorities

◆ Hospitals	⚡ Defence & Critical Infrastructure	✓ Training Rooms

► Industrial Companies	★ Hotels (Business Centres)	◆ Managed Service Providers

Why Smartkeeper?

Physical protection as an essential complement to software-based endpoint security

Data Loss Prevention at Hardware Level

Physical port blockers prevent connection of unauthorised USB storage devices, keyloggers or network adapters – a measure that purely software-based endpoint security cannot replicate. An important building block within ISO 27001 audits and GDPR data protection concepts.

Key System for Managed Environments

The Smartkeeper key system enables IT departments to grant controlled access to interfaces for maintenance. A dedicated key opens and sets all blockers – without per-device management. Documentable and auditable for compliance evidence.

Comprehensive Interface Coverage

Smartkeeper secures not only USB-A but also USB-C, RJ45, HDMI, DisplayPort, VGA and audio sockets – covering all physical interface risks of a workstation or server rack within a single, consistent product line.

Volume Pricing for IT Rollouts

Lieske Elektronik supplies Smartkeeper products on a project basis for IT rollouts in enterprises, public authorities and educational institutions. Port blocker kits for entire departments, key systems and individually configured sets – contact vertrieb@industry-electronics.de.

Smartkeeper Products in the Shop by Category:

► Data Protection
► Theft Protection
► Security Packages

► Write Blockers
► Data Security
► [link:kategorie:XXXX:]Port Blockers[/link]

Frequently Asked Questions about Smartkeeper

Answers for procurement and planning

Why is software-based endpoint security alone insufficient to secure USB ports? Software-based USB restrictions can be bypassed via boot media, BIOS bypasses or compromised system accounts. Physical port blockers such as those from Smartkeeper are independent of this: a set blocker cannot be removed without the matching key – not by software, malware or administrative privileges.

Are Smartkeeper port blockers compatible with all USB standards (2.0, 3.0, 3.1, Type-C)? Smartkeeper offers specific blockers for USB-A (2.0/3.0/3.1) and USB-C sockets. The physical shape of the connector determines compatibility – USB-A blockers fit all USB-A sockets regardless of the transmission standard; USB-C blockers secure USB-C ports including Thunderbolt sockets with USB-C form factor.

Can Smartkeeper port blockers be documented as part of ISO 27001 audits? Yes. Physical interface security measures are an explicit component of the ISO 27001 standard (Annex A.11 – Physical Security). Smartkeeper port blockers can be incorporated as documented, auditable protective measures in IT security concepts and GDPR processing records. The key system enables comprehensive access logging.

Smartkeeper Products – Request a Quote or Place an Order Our B2B sales team is happy to assist: pricing enquiries, volume discounts, technical clarification.

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SmartKeeper BL04P1GNSmartKeeper Mini USB-B Port Blocker green 10 pieces.

Lieske Part No.: 2042480
Mfg Part No: BL04P1GN

16,34 EUR

≈ £13.95 | ≈ $18.59

Delivery time from supplier's stock (ca.) 11 workdays

SmartKeeper BL04P1GYSmartKeeper Mini USB-B Port Blocker gray 10 pieces.

Lieske Part No.: 2042479
Mfg Part No: BL04P1GY

16,34 EUR

≈ £13.95 | ≈ $18.59

Delivery time from supplier's stock (ca.) 6 workdays

SmartKeeper BL04PKGNSmartKeeper Mini USB-B Port Blocker green 4 pcs.+Key

Lieske Part No.: 2124617
Mfg Part No: BL04PKGN

16,34 EUR

≈ £13.95 | ≈ $18.59

Delivery time from supplier's stock (ca.) 6 workdays

SmartKeeper BL04PKGYSmartKeeper Mini USB-B Port Blocker grey 4 pcs.+Key

Lieske Part No.: 2124618
Mfg Part No: BL04PKGY

16,34 EUR

≈ £13.95 | ≈ $18.59

Delivery time from supplier's stock (ca.) 6 workdays

SmartKeeper CF04P1GNSmartKeeper Mini CF Port Blocker green 10 pcs.

Lieske Part No.: 2124630
Mfg Part No: CF04P1GN

20,10 EUR

≈ £17.17 | ≈ $22.87

Delivery time on request

SmartKeeper CF04P1GYSmartKeeper Mini CF Port Blocker grey 10 pcs.

Lieske Part No.: 2124631
Mfg Part No: CF04P1GY

20,10 EUR

≈ £17.17 | ≈ $22.87

Delivery time on request

SmartKeeper CF04PKGNSmartKeeper Mini CF Port Blocker green 4 pcs.+Key

Lieske Part No.: 2124633
Mfg Part No: CF04PKGN

19,91 EUR

≈ £17.00 | ≈ $22.66

Delivery time on request

SmartKeeper CF04PKGYSmartKeeper Mini CF Port Blocker grey 4 pcs.+Key

Lieske Part No.: 2124634
Mfg Part No: CF04PKGY

19,91 EUR

≈ £17.00 | ≈ $22.66

Delivery time from supplier's stock (ca.) 6 workdays

SmartKeeper CL04P1GNSmartKeeper Mini USB-C Port Blocker green 10 pieces.

Lieske Part No.: 2042483
Mfg Part No: CL04P1GN

19,03 EUR

≈ £16.25 | ≈ $21.66

Delivery time from supplier's stock (ca.) 6 workdays

SmartKeeper CL04P1GYSmartKeeper Mini USB-C Port Blocker gray 10 pieces.

Lieske Part No.: 2042482
Mfg Part No: CL04P1GY

19,03 EUR

≈ £16.25 | ≈ $21.66

Delivery time from supplier's stock (ca.) 6 workdays

SmartKeeper CL04PKGNSmartKeeper Mini USB-C Port Blocker green 4 pcs.+Key

Lieske Part No.: 2124636
Mfg Part No: CL04PKGN

19,91 EUR

≈ £17.00 | ≈ $22.66

Delivery time from supplier's stock (ca.) 6 workdays

SmartKeeper CL04PKGYSmartKeeper Mini USB-C Port Blocker grey 4 pcs.+Key

Lieske Part No.: 2124637
Mfg Part No: CL04PKGY

19,91 EUR

≈ £17.00 | ≈ $22.66

Delivery time from supplier's stock (ca.) 6 workdays

Smartkeeper CSK-BLD10SmartKeeper Pro USB-B Port Blocker CSK-BUL10

Lieske Part No.: 266501
Mfg Part No: CSK-BLD10

5,74 EUR

≈ £4.90 | ≈ $6.53

Delivery time on request

SmartKeeper CSK-CL04SmartKeeper Pro Mini USB-C Port Blocker CSK-CL04

Lieske Part No.: 2183928
Mfg Part No: CSK-CL04

5,74 EUR

≈ £4.90 | ≈ $6.53

Delivery time on request

SmartKeeper CSK-CUL10SmartKeeper Pro USB-C Port Blocker CSK-CUL10

Lieske Part No.: 2111064
Mfg Part No: CSK-CUL10

24,28 EUR

≈ £20.74 | ≈ $27.63

Delivery time on request

SmartKeeper CSK-DCGYSmartKeeper Basic RJ45 Port Dust Cover 24 pcs. grey

Lieske Part No.: 2110750
Mfg Part No: CSK-DCGY

14,56 EUR

≈ £12.43 | ≈ $16.57

Delivery time from supplier's stock (ca.) 6 workdays

Smartkeeper CSK-DL10SmartKeeper Basic DVI Port Lock

Lieske Part No.: 244910
Mfg Part No: CSK-DL10

12,78 EUR

≈ £10.91 | ≈ $14.54

Delivery time from supplier's stock (ca.) 6 workdays

Smartkeeper CSK-DLD10SmartKeeper Pro DisplayPort Blocker CSK-DLD10

Lieske Part No.: 245304
Mfg Part No: CSK-DLD10

5,74 EUR

≈ £4.90 | ≈ $6.53

Delivery time on request

SmartKeeper CSK-FO11SmartKeeper Pro Fiber Optic Module Lock Plus CSK-FO11

Lieske Part No.: 1232310
Mfg Part No: CSK-FO11

9,00 EUR

≈ £7.69 | ≈ $10.24

Delivery time on request

SmartKeeper CSK-FOC10DSmartKeeper Pro Fiber Optic LC cableLock Dual CSK-FOC10D

Lieske Part No.: 2207975
Mfg Part No: CSK-FOC10D

10,41 EUR

≈ £8.89 | ≈ $11.85

Delivery time on request

Smartkeeper CSK-HMD10SmartKeeper Pro HDMI Port Blocker CSK-HMD10

Lieske Part No.: 245310
Mfg Part No: CSK-HMD10

5,74 EUR

≈ £4.90 | ≈ $6.53

Delivery time on request

Smartkeeper CSK-LK11SmartKeeper Pro USB Cable Lock CSK-LK10

Lieske Part No.: 245468
Mfg Part No: CSK-LK11

42,30 EUR

≈ £36.12 | ≈ $48.14

Delivery time on request

SmartKeeper CSK-LLD01SmartKeeper USB-A Port anti-theft lock

Lieske Part No.: 2042519
Mfg Part No: CSK-LLD01

25,91 EUR

≈ £22.13 | ≈ $29.49

Delivery time from supplier's stock (ca.) 6 workdays

SmartKeeper CSK-MSD10SmartKeeper Pro Mini Micro SD Port Blocker CSK-MSD10

Lieske Part No.: 479368
Mfg Part No: CSK-MSD10

5,74 EUR

≈ £4.90 | ≈ $6.53

Delivery time on request

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