Silver key inserted in laptop side port with five small rectangular silver port covers on white background.
Single silver key-shaped tool with round head (hole), long stem and rectangular USB-A plug near a laptop edge.
Silver metal removal key and six black rectangular port-blocker plugs with white icons on white fabric.
Five small black rectangular port plugs on a matte black surface beside a silver key tool and laptop edge.
Black network panel with RJ45 ports showing red, black and blue inserted blockers; three loose red, black, clear blockers.
Single black RJ45 port blocker with silver key beside a white laptop's Ethernet port and keyboard
Silver key inserted in laptop side port with five small rectangular silver port covers on white background.Single silver key-shaped tool with round head (hole), long stem and rectangular USB-A plug near a laptop edge.Silver metal removal key and six black rectangular port-blocker plugs with white icons on white fabric.Five small black rectangular port plugs on a matte black surface beside a silver key tool and laptop edge.Black network panel with RJ45 ports showing red, black and blue inserted blockers; three loose red, black, clear blockers.Single black RJ45 port blocker with silver key beside a white laptop's Ethernet port and keyboard

Physical port security

Prevents unauthorized connection

Compact and reusable

Specific metal locking key

Stops data theft and viruses

Protects hardware ports

USB Port Blocker Security Lock Set (USB-A, USB-C, RJ45 Ethernet)

SW-PB-USBC
Type: USB-C
Price:
$19.99 AUD

Secure unused ports in seconds with the Sentriwise USB Port Blocker Security Lock Set, a hardware-level usb port blocker system for USB-A, USB-C and RJ45 Ethernet connections.

Each usb lock uses a snug, barbed design that fits tightly into the port to act as a physical usb data blocker, helping to prevent confidential files walking out on a USB stick, stopping rogue devices, and reducing dust, moisture and accidental damage in busy Australian offices, schools, government departments and server rooms.

Whether you are closing down front-facing laptop ports with a discreet USB-C / USB-A port blocker or hardening network racks with an RJ45 (commonly called Ethernet) port blocker, only the matching specific metal key can remove each lock, giving IT teams a compact, reusable and easy-to-manage layer of protection across desktops, laptops and critical network equipment.

Great for:

Corporate Offices • Schools & Unis • Server Rooms • Government Depts • Industrial Control

Delivery ETA (FREE $99+)

Delivery info

Sentriwise provides various methods of delivery:

Delivery Options in Australia:

Standard & Express Delivery.

We dispatch orders from our Sydney and Perth warehouses daily, making use of Express, Toll Express, SEKO, or Australia Post Express as our shipping vendors.

All orders placed before 1:00 PM AEST are sent out on the same day, with most being delivered within 1-3 business days.
Upon shipment, the transaction will be marked “Shipped”, and you will receive an email notification. In the event that you do not receive your purchase within 7 business days, please do not hesitate to contact us.

Same Day Delivery.

If you are based in Sydney or Perth, we offer same-day delivery for orders placed before 11:30 am.
Simply choose 'Same Day Delivery' at checkout. The cost of this service will be shown to you at the checkout. 

Click & Collect.

You can pick up your orders from our Sydney and Perth warehouses during our respective business hours:
Sydney - Monday to Friday 8 am to 4 pm AEST.
Perth - Monday to Friday 9 am to 5 pm AWST, Saturday 9 am to 1 pm AWST.

Australian Shipping Prices:

  • Free Delivery within Australia on orders over $99!
  • We offer FREE Standard Shipping (3-5 Business Days) with on all orders over $99.
    Upgrade to Express (2-3 Business days) for $5.99.
  • We offer FREE Express Shipping (2-3 Business Days) with Australia Post on all orders over $149
  • For orders under $99, Standard Shipping will cost $5.99. Upgrade to Express shipping for $12.99
  • Australia Post Insured Express (WA): $14.99, 1-2 business days
  • Australia Post Insured Express (NSW, VIC, QLD, SA, TAS, ACT, NT): $14.99, 3-5 business days
  • Bulk goods over 5kg (such as some outdoor cameras & solar panels): Standard-only shipment 

Delivery Within NZ.

Sentriwise dispatches orders within New Zealand daily, using Australia Post Express as our shipping vendor.
All orders placed before 1:00 PM AEST, are sent out the same day, with most being delivered within 3-5 business days.
Upon shipment, the transaction will be marked “Shipped” and you will receive an email notification. In the event that you do not receive your purchase within 7 business days, please do not hesitate to contact us.

International Shipping.

We also ship our products internationally, using a wide range of international shipping vendors. All orders placed before 1:00 PM AEST, are sent out the same day, with most being delivered within 2 weeks.
Upon shipment, the transaction will be marked “Shipped” and you will receive an email notification. In the event that you do not receive your purchase within 3 weeks, please do not hesitate to contact us.

The recipient of an international shipment may be subject to other fees and charges, including Import Fees, which are charged once the shipment arrives at the destination country. Any additional fees and charges for customs clearance must be borne by the recipient, should it be applicable.

Click & Collect info

At Sentriwise, we understand the importance of convenience and flexibility when it comes to receiving your online orders. That's why we offer a hassle-free click-and-collect service that allows you to shop online and pick up your purchases at our store located in Sydney and Perth. 

Need it fast – no problems – your Click & Collect order will be ready to pick up in 1 hour or less during store trading hours.

Availability 

Sydney: Monday to Friday: 8am-4pm AEST

Perth: Monday to Friday: 9am-5pm AWST, Saturday: 9am-1pm AWST

To place a Click & Collect order: 
Step 1. Browse products
Step 2. Add to cart and head to the checkout.
Step 3. Choose your store and complete your order.
Step 4. We’ll confirm your order
Step 5. Collect your order.

Collecting your order

Click & Collect parcels need to be signed for at the store upon checkout for pick-up. Simply use the email copy on your phone as proof of purchase, together with your photo identification. If you authorised another person to collect your parcel, they will require photo identification to sign for and collect the parcel together with the proof of purchase. Once the parcel has been signed for, you or the person collecting are responsible for any damage or loss of items.

Click & Collect orders will be kept for 30 days from the day you’ve placed your order. After 30 days your order will be cancelled and we will contact you to arrange a refund of the order value. Please contact the Customer Service if you’re unable to collect in that time frame.

*Please note for collections from Sydney, all product enquiries should be addressed via our online Customer Service portal or via phone 1300789055. 
1 Year Warranty
Lifetime Support

Physical port security

Prevents unauthorized connection

Compact and reusable

Specific metal locking key

Stops data theft and viruses

Protects hardware ports

Physical Data Barrier

Physically blocks USB-A, USB-C, or RJ45 ports to prevent unauthorised devices from connecting. The ultimate first line of defence.

Prevent Data Leaks

Stops staff or visitors from inserting flash drives to steal data or introduce malware to your secure network.

Precision Fit

Designed to sit flush with the port, making it impossible to remove by hand without the specific locking key.

Specialised Key System

The port blockers can only be removed using the included metal key. One key is provided for every five locks to ensure controlled access.

Dust & Moisture Seal

Beyond security, these blockers seal open ports against dust, dirt, and moisture, prolonging the life of your hardware.

Easy Operation

Simple to insert and lock in seconds. To remove, just align the key, turn, and pull. Reusable design for long-term value.

Universal Compatibility

Available for standard USB-A, modern USB-C, and RJ45 Ethernet ports. Protects desktops, laptops, and server infrastructure.

Cost-Effective Security

An affordable way to significantly harden the security of your office, school, or business equipment against physical threats.

Specifications

  • Material: PC material / Metal Key
  • Compatibility: USB-A, USB-C, or RJ45 (depending on selection)
  • Key Type: Specific metal key (1 per 5 locks)

Reviews

What's in the Box

  • 1x Locking Key (per 5 units)

FAQs

The port blockers are designed for standard USB-A, USB-C and RJ45 ports commonly found on laptops, desktops, docking stations and some network equipment. Always check the port shape before locking.

To lock, line up the correct blocker with the port and press until it clicks into place. To unlock, insert the matching metal key into the opening, confirm the direction and pull the lock out smoothly.

Yes. The blocks and keys are designed for repeated use, so you can move them between devices as your security needs change.

No. Each style has its own key profile. USB-C keys will not open USB-A or RJ45 locks, and vice versa. This makes it harder for the wrong key to be used by mistake.

These port blockers physically stop anything being plugged in, which is ideal when you want zero access. For situations where charging is needed but data must be blocked, consider using a separate usb data blocker alongside this system.

Support

Need help? Our in-house experts are here to assist! Chat with us anytime for quick answers and expert support.

Live Chat Email us 1300 789 055

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