Best Data Port Lock for PC: Ultimate Security Guide

The best Best Data Port Lock for PC is the 24-Pack USB-A Port Locks 2 Keys, the only one here that gives you a 24-pack with two master keys at a budget-friendly price. It’s built for families, classrooms, and small offices that need to block USB ports without spending a fortune.

Want a bulk solution for a large enterprise instead? The AMPCOM USB-A Port Locks 100-Pack 10 is your ticket, as long as you’re okay with a single key across 100 locks.

As an Amazon Associate, I earn from qualifying purchases.

This guide tells you exactly which port locks actually work and which ones to skip before you buy. It also covers the buyers who shouldn’t buy any of these (they’ll get their own section later).

Everything below comes from current Amazon product data, specs, and each product’s owner track record, not hands-on lab testing.

Quick Answer: The Best Data Port Lock for PC

The 24-Pack USB-A Port Locks 2 Keys is the best overall pick for most people. Here are all five options ranked:

• 24-Pack USB-A Port Locks 2 Keys (Best Overall for Families & Classrooms): 24 locks with two keys, great value.
• AMPCOM USB-A Port Locks 100-Pack 10 (Best for Large Enterprises & Data Centers): 100 locks, single key, heavy-duty.
• 24-Pack USB-A Port Blockers 2 Keys (Best for General IT Security): 24 locks, same key system, slightly different design.
• 12PCS USB Metal Port Lock Blocker (Best for Rugged Environments): 12 metal locks, one key, dust & moisture proof.
• Mini USB-B Port Lock Key (Best for Non-Standard USB-B Ports): 4 locks, one key, for legacy devices.

Thinking about buying a software-only solution instead? Jump to Who Should NOT Buy below before you spend anything.

Comparison Table

Here’s the lineup at a glance: photo, product, who it’s built for, and our /10 score.

Photo	Product	Best for	Score	Buy
	24-Pack USB-A Port Locks 2 Keys	Families & Classrooms	8.5/10	Check price →
	AMPCOM USB-A Port Locks 100-Pack 10	Large Enterprises & Data Centers	9.2/10	Check price →
	24-Pack USB-A Port Blockers 2 Keys	General IT Security	8.0/10	Check price →
	12PCS USB Metal Port Lock Blocker	Rugged Environments	7.8/10	Check price →
	Mini USB-B Port Lock Key	Non-Standard USB-B Ports	7.0/10	Check price →

Scroll sideways on small screens to see every column.

24-Pack USB-A Port Locks 2 Keys: Best Overall for Families & Classrooms

24-Pack USB-A Port Locks 2 Keys: Best Overall for Families & Classrooms

#1

24-Pack USB-A Port Locks 2 Keys

24-PackTwo keys included

8.5OUT OF 10

Build Quality8.3

Ease of Use9.0

Security Level8.0

Value for Money8.7

This is the best choice for families, classrooms, and small offices that need to lock USB ports without a big budget. The 24-pack comes with two identical keys, so you can keep one in a drawer and one on a keychain. Each lock clips into a standard USB-A port and stays put until you insert the key and twist. Verified buyer feedback shows these locks are firm enough to resist casual tampering but easy enough for an authorized user to remove in seconds.

The locks are made of plastic with a metal core around the keyhole. They don’t block adjacent ports on most laptops because the body is slim. Manufacturer specs indicate they fit any standard USB-A female port, including the ones on laptops, desktops, monitors, and game consoles. You won’t need any tools to install them: just push and lock.

Flaws but not dealbreakers. The plastic construction feels less durable than the metal options on this list, and some users mention the key can be a bit stiff to turn at first. Also, the two keys are identical, so if you lose both, you’ll need to buy a new set or use a small screwdriver to pry the lock out (which voids the product).

Need a tougher metal option for a dusty workshop? The 12PCS USB Metal Port Lock Blocker further down gives you metal construction and a red visual deterrent.

⚠

Compatibility: These locks are designed for USB-A ports only. They won’t fit USB-C, Micro-USB, or USB-B ports. Double-check your devices before buying.

Pros

• ✓24 locks in one pack – covers an entire classroom or small office.
• ✓Two keys included – reduces risk of a single point of failure.
• ✓Simple push-and-lock installation – no tools required.
• ✓Budget-friendly price point – saves money when securing multiple devices.

Cons

• ✕Plastic body – not as durable as metal options.
• ✕Key can be stiff initially – requires a few turns to break in.
• ✕No individual key per lock – master key system means anyone with the key can open any lock.

Quantity

24 locks

Keys

2 identical keys

Material

Plastic + metal core

Port Type

USB-A

Best for: Families, small classrooms, and home offices that need a cost-effective way to physically block USB ports on multiple devices.

Check current price on Amazon →

AMPCOM USB-A Port Locks 100-Pack 10: Best for Large Enterprises & Data Centers

AMPCOM USB-A Port Locks 100-Pack 10: Best for Large Enterprises & Data Centers

#2

AMPCOM USB-A Port Locks 100-Pack 10

AMPCOM10 keys included

9.2OUT OF 10

Build Quality9.5

Ease of Use8.8

Security Level9.0

Value for Money9.3

This is the go-to choice for IT departments that need to secure hundreds of USB ports across a data center or enterprise office. The 100-pack includes 10 keys, which is a huge advantage: you can distribute keys to different teams without a single master key. AMPCOM’s design uses a dual-keyhole mechanism that prevents the lock from being removed without the correct key. The red plastic body acts as a visual deterrent, and the locks are also dust- and waterproof, rated for use in server racks.

Aggregate user reviews report that the locks fit snugly and don’t wiggle once inserted. The keys are numbered, so you can track which key opens which lock (though all locks in the pack use the same key pattern). The pack comes with a small removal tool to pop out a lock if the key is lost, though that voids tamper resistance.

Flaws but not dealbreakers. The 100-pack is overkill for a home user. Also, because the locks are keyed alike, one key can open every lock in the pack; if you need individual keying, you’ll need a different product. The plastic is thicker than the 24-pack, which might block an adjacent USB port on ultra-thin laptops.

Need individual keys per lock? The 24-Pack USB-A Port Blockers 2 Keys is a simpler alternative for smaller deployments.

⚠

Compatibility: These locks are designed for USB-A ports only. They will not fit USB-C, Micro-USB, or USB-B ports. The thick body may block adjacent ports on tightly spaced laptops.

Pros

• ✓100 locks in one pack – ideal for large-scale deployments.
• ✓10 keys included – allows distribution to multiple authorized users.
• ✓Dust- and waterproof design – suitable for server racks and industrial environments.
• ✓Dual-keyhole mechanism – adds extra resistance against tampering.

Cons

• ✕All locks keyed alike – one key opens every lock in the pack.
• ✕Thicker plastic body – may block adjacent ports on compact laptops.
• ✕Overkill for home or small office use – too many locks for most people.

Quantity

100 locks

Keys

10 keys

Material

Plastic (red)

Port Type

USB-A

Best for: IT managers, data center operators, and large enterprises that need to physically lock USB ports on hundreds of machines while providing multiple keys to staff.

Check current price on Amazon →

24-Pack USB-A Port Blockers 2 Keys: Best for General IT Security

24-Pack USB-A Port Blockers 2 Keys: Best for General IT Security

#3

24-Pack USB-A Port Blockers 2 Keys

24-PackAnti-tamper design

8.0OUT OF 10

Build Quality7.8

Ease of Use8.5

Security Level7.5

Value for Money8.2

This is a solid choice for IT professionals who need a reliable, removable blocker for standard USB-A ports on PCs and laptops. The 24-pack comes with two keys and uses a similar mechanism to the first pick, but the design is slightly different: the keyhole is recessed, making it a bit harder to pick at with a paperclip. Verified buyer feedback notes that the locks fit snugly and don’t fall out even when devices are moved around.

Manufacturer specifications indicate these blockers are anti-tamper and removable only with the included key. They work on laptops, PCs, game consoles, and even some monitors. The black plastic blends in nicely with most devices, so it doesn’t scream “security” – which can be a pro or con depending on your use case.

Flaws but not dealbreakers. The plastic is still plastic – it won’t survive a determined attack with pliers. Some users report that the key can be a bit finicky to align with the lock. Also, the two keys are identical, so if you lose one, you’re down to a single key.

If you need a more robust physical deterrent, the 12PCS USB Metal Port Lock Blocker offers metal construction and a bright red color that signals “do not touch.”

⚠

Compatibility: These are USB-A only. Not for USB-C, Micro-USB, or USB-B ports. The recessed keyhole may require a bit more precision when inserting the key.

Pros

• ✓24-pack – good for medium-sized deployments.
• ✓Recessed keyhole – slightly harder to pick than exposed keyholes.
• ✓Black color – blends in with most devices.
• ✓Removable without damage – key removal is clean.

Cons

• ✕Plastic construction – not as durable as metal.
• ✕Key alignment can be tricky – some users report difficulty inserting.
• ✕Only two keys – if both are lost, locks are hard to remove.

Quantity

24 locks

Keys

2 identical keys

Material

Plastic (black)

Port Type

USB-A

Best for: IT administrators and small offices that want a low-profile, anti-tamper USB-A port blocker that’s easy to remove with the included key.

Check current price on Amazon →

12PCS USB Metal Port Lock Blocker: Best for Rugged Environments

12PCS USB Metal Port Lock Blocker: Best for Rugged Environments

#4

12PCS USB Metal Port Lock Blocker

12PCSMetal construction

7.8OUT OF 10

Build Quality9.0

Ease of Use7.5

Security Level8.5

Value for Money6.5

This is the pick for workshops, factories, and outdoor settings where plastic locks would crack or degrade. The 12 locks are made entirely of metal (likely zinc alloy) with a bright red finish that visually warnsanyone not to plug in a USB drive. The metallic body resists bending and cracking, and the red color makes it obvious that the port is locked. Manufacturer specs indicate these blockers are also dust- and moisture-proof, making them suitable for warehouses, garages, or any environment with floating debris.

The lock comes with a single key and uses a barrel-style mechanism. Verified buyer feedback says the key turns smoothly and the lock feels solid in the port. The metal construction also means they’re less likely to be chewed up by a curious child or knocked loose during equipment transport. At 12 units in a pack, they’re best for securing a few critical machines rather than an entire office.

Flaws but not dealbreakers. The metal build is heavier, and the cost per lock is higher than the plastic options. The pack includes only one key, so if you lose it, removal becomes a real headache. Some users also note that the metal can scratch the inside of the USB port if inserted at an angle, so care is needed during installation.

Need a larger quantity for a classroom or small office? The 24-Pack USB-A Port Locks 2 Keys gives you double the locks at a lower cost per unit, albeit in plastic.

⚠

Compatibility: USB-A ports only. The metal body is slightly heavier than plastic locks, so ensure the port is firmly mounted (not a loose USB extension cable).

Pros

• ✓Full metal construction – highly durable and resistant to physical damage.
• ✓Red visual deterrent – clearly signals that the port is locked.
• ✓Dust- and moisture-proof – suitable for harsh environments.
• ✓Barrel key mechanism – smooth and reliable operation.

Cons

• ✕Only one key included – losing it means difficult removal.
• ✕Higher cost per lock – not budget-friendly for large deployments.
• ✕Metal can scratch USB ports – requires careful insertion.

Quantity

12 locks

Keys

1 key

Material

Metal (zinc alloy)

Port Type

USB-A

Best for: Workshops, garages, factories, and outdoor environments where plastic locks would break and a visible physical deterrent is needed.

Check current price on Amazon →

Mini USB-B Port Lock Key: Best for Non-Standard USB-B Ports

Mini USB-B Port Lock Key: Best for Non-Standard USB-B Ports

#5

Mini USB-B Port Lock Key

MiniUSB-B only

7.0OUT OF 10

Build Quality7.2

Ease of Use7.8

Security Level6.5

Value for Money6.8

This is the only option on our list designed for USB-B ports, not USB-A. USB-B ports are the square-ish connectors found on older printers, scanners, and some audio equipment. The pack includes four blockers and one key. The locks are small and plastic, with a simple pin-and-tumbler mechanism. Verified buyer feedback says they fit snugly into standard USB-B female ports and prevent unauthorized data transfer.

Manufacturer specifications indicate these locks are removable and reusable. They work on devices like desktop printers, external hard drives, and older docking stations. The key is small and easy to lose, so keep it in a safe place. The plastic construction is adequate for occasional use but won’t withstand heavy abuse.

Flaws but not dealbreakers. The biggest limitation is the port type: USB-B is becoming rare, so these locks have a very narrow use case. The single key means if you lose it, the lock is stuck. Also, the plastic is thin and could crack if you overtighten the key. The price per lock is higher than the USB-A plastic options because of the niche design.

If you need to secure USB-A ports instead, the 24-Pack USB-A Port Locks 2 Keys is a far better value and more widely compatible.

⚠

Compatibility: These locks are designed for USB-B ports only. They will not fit USB-A, USB-C, or Micro-USB ports. Check your device’s port shape before purchasing.

Pros

• ✓Specifically designed for USB-B ports – rare niche coverage.
• ✓Four blockers in one pack – enough for a small office printer setup.
• ✓Simple push-and-lock installation – no tools needed.
• ✓Reusable and removable – can be moved between devices.

Cons

• ✕Very narrow use case – only works with USB-B ports.
• ✕Only one key included – losing it makes removal difficult.
• ✕Thin plastic construction – may crack under stress.

Quantity

4 locks

Keys

1 key

Material

Plastic

Port Type

USB-B

Best for: Offices or labs that still use legacy equipment with USB-B ports, such as older printers, scanners, and audio interfaces.

Check current price on Amazon →

Buying Guide: Port Type, Quantity, Material, and Key Management

A USB port lock is a simple device, but a few details can make or break your purchase. Here are the four factors that matter most.

Which port type do you need to lock?

The most common port on laptops and desktops today is USB-A (the rectangular one). All five picks here cover USB-A except the Mini USB-B Port Lock Key, which is for the square USB-B connectors found on older printers. If you need to lock a USB-C port, you’re out of luck with this category: USB-C port locks exist but are much rarer, and none of the products in this roundup support them.

Double-check your devices before ordering.

How many locks do you need?

The packs range from 4 locks (the Mini USB-B) to 100 locks (the AMPCOM). For a home office or classroom, a 24-pack is usually enough to cover a few laptops, a desktop, and a monitor. For a data center or large enterprise, the 100-pack from AMPCOM is the clear winner.

Don’t overshoot: buying a 100-pack for a single laptop is wasteful. Conversely, buying a 12-pack for a 50-workstation office means you’ll need to reorder.

Plastic or metal?

Plastic locks are cheaper, lighter, and sufficient for most indoor environments. The 24-Pack USB-A Port Locks 2 Keys and the 24-Pack USB-A Port Blockers 2 Keys are both plastic. Metal locks, like the 12PCS USB Metal Port Lock Blocker, are more durable and resistant to physical tampering, but they cost more and can scratch the port.

If you’re securing a device in a dusty workshop or a public kiosk, metal is the better choice.

Key management: how many keys, and who has them?

Every lock in a given pack uses the same key (or a set of identical keys). This means one key can open every lock in that pack. For a small office, that’s fine: one authorized person can lock and unlock all ports.

For a large enterprise, you might want multiple keys for different teams. The AMPCOM pack includes 10 keys, which is excellent for distribution. The 12PCS Metal pack includes only one key, which is a risk if it gets lost.

Always keep a spare key in a secure location.

Who Should NOT Buy Best Data Port Lock for PC

USB port locks are the wrong solution for some buyers. Here’s who should skip this category entirely.

You Need to Block USB-C or Micro-USB Ports

All the locks in this roundup are designed for USB-A (rectangular) or USB-B (square) ports. If you need to block USB-C or Micro-USB, these products won’t work. USB-C port locks exist but are much less common and often use a different mechanism.

Look for a dedicated USB-C port blocker instead. If you’re dealing with a mix of port types, you may need to buy separate products for each.

You Want a Software-Only Solution

A physical port lock prevents someone from plugging a USB drive into the port. It does not prevent malware from being installed through other means (like email or network attacks). If your goal is to simply restrict USB storage devices, you can also use group policy settings on Windows or third-party software.

A physical lock is better for environments where unauthorized physical access is a concern, like a public-facing computer or a school lab.

You Need to Secure a Single Device Only

If you just need to lock one or two USB ports on a single laptop, buying a 24-pack is overkill. Consider a smaller pack, like the 12PCS Metal pack (12 locks) or the Mini USB-B pack (4 locks). Alternatively, you can buy a single port lock from a local electronics store.

The packs in this list are designed for multiple devices, so you’ll be paying for locks you don’t need.

Final Verdict

The 24-Pack USB-A Port Locks 2 Keys is the best overall pick for most people, offering a great balance of quantity, ease of use, and value. It’s perfect for families, classrooms, and small offices.

Want a bulk solution for a large enterprise? The AMPCOM USB-A Port Locks 100-Pack 10 gives you 100 locks and 10 keys for easy distribution. Need a rugged metal option for a workshop?

The 12PCS USB Metal Port Lock Blocker is your best bet. Have legacy USB-B equipment? The Mini USB-B Port Lock Key covers that niche.

Before you buy, scroll back up to the “Who Should NOT Buy” section to make sure a physical port lock is actually what you need. If it is, any of these five picks will keep your data safer.

FAQ

What’s the best Data Port Lock for PC overall?

We recommend the 24-Pack USB-A Port Locks 2 Keys. It offers 24 locks, two keys, and a budget-friendly price that works for most households, classrooms, and small offices.

Can I use a USB port lock on a USB-C port?

No. All the locks in this roundup are designed for USB-A or USB-B ports only. USB-C port locks are a separate product category and are not covered here.

How do I remove a USB port lock if I lose the key?

Most locks are designed to be removed only with the key. If you lose the key, you can try using a small flathead screwdriver to carefully pry the lock out. This will likely damage the lock and may scratch the USB port.

Always keep a spare key in a safe place.

Are these locks reusable?

Yes. All the locks in this roundup are removable and reusable. You can insert and remove them multiple times without damaging the lock or the port, as long as you use the correct key.

Do these locks prevent data theft?

They physically prevent someone from plugging a USB drive into the port. This stops unauthorized data transfer via USB. However, they do not prevent malware or data theft through other means, such as network attacks or email.

Which pack is best for a large enterprise?

The AMPCOM USB-A Port Locks 100-Pack 10 is the best choice. It includes 100 locks and 10 keys, making it easy to distribute among multiple teams. The dust- and waterproof design is also suitable for server racks.