Smart Keeper UL04P1GY — Mini USB-B Port Lock, 10 Locks, Grey
10 locksMini USB-BKey not includedEssential Mini
The Smart Keeper UL04P1GY is a pack of ten grey Mini USB-B Port Locks — locks only, without a key, from Smart Keeper’s Essential Mini series. Each lock is pushed into an unused Mini USB-B port by hand, with no tools, software or power, and stays there until it is released with a Smart Keeper key of the matching colour. In practice it stops someone plugging a cable or device into that port, and a grey lock in a port shows at a glance that it is controlled. It fits Mini USB-B ports on older cameras, card readers, external drives, GPS units, test instruments and industrial controllers. The pack contains no key, so you also need the grey Lock Key Mini (U04) — we explain below. Because each colour has its own key pattern, a grey key can be given to the people responsible for the grey ports without opening locks of other colours, and the locks can be moved to another device with the key when needs change.
Compatibility — check before buying:
No key in this pack. Smart Keeper sells these locks without a key; they are released with the Lock Key Mini (U04). Keys and locks are colour-coded: Smart Keeper states a lock opens only with a key of the matching colour, so a grey lock needs a grey key. The Mini-series key is not compatible with Smart Keeper’s Basic series (USB-A and RJ45 port locks), so do not mix series. It fits Mini USB-B ports only — not the flatter Micro USB-B, not USB-A (that is Smart Keeper’s UL03, a Basic-series lock with a different key) and not USB-C. Not sure? Send us the device model or a photo of the port and we check it.
Best For
✓ Industrial and lab equipment
✓ Older cameras and card readers
✓ Kiosks and signage players
✓ Test and measurement devices
✓ Shared equipment in schools
✓ Colour-coding ports by team
Key Features
Locks in by hand
Pushes into an empty Mini USB-B port without tools, software or power, and stays there until released.
Colour-coded key
A lock opens only with a Smart Keeper key of the same colour, so each team or zone can hold its own colour.
Ten locks per pack
A refill of ten grey locks for covering more devices with the key you already hold.
Visible control
A coloured lock shows at a glance that the port is controlled, and an empty one shows a lock is missing.
Technical Specifications
| Identification |
| Brand |
Smart Keeper |
| Product |
Mini USB-B Port Lock | Essential Mini |
| Part Number |
UL04P1GY |
| EAN / GTIN |
8809534691584 |
| Colour |
Grey |
| Physical |
| Lock Dimensions |
6.7 × 3.05 × 5.35 mm |
| Weight per Lock |
0.1 g |
| Material |
Not stated by Smart Keeper |
| Origin |
Made in Korea |
| Operation |
| Fits |
Mini USB-B ports on older cameras, card readers, external drives, GPS units, test instruments and industrial controllers |
| Fitting |
Pushed in by hand — no tools, software or power |
| Removal |
Only with a Smart Keeper key of the matching colour |
| Series |
Essential Mini — not compatible with Basic-series keys |
| Key |
| Key for These Locks |
Lock Key Mini (U04), grey — sold separately |
| Key Range |
Opens up to 10 Essential Mini lock types of the same colour |
| Colour Patterns |
3 colour patterns in the Mini series |
| Typical Use |
| Where |
Industrial and lab equipment, Older cameras and card readers, Kiosks and signage players, Test and measurement devices |
| What It Stops |
Cables and devices being plugged into a free Mini USB-B port |
| What It Does Not Stop |
Devices already connected, or software-level access — combine with OS policies |
| In the Box |
| Included |
10 × Grey Mini USB-B Port Locks — locks only |
| Not Included |
The Lock Key Mini (U04) — order it separately |
| Warranty |
| Warranty |
1-Year Warranty (Singular) |
| Manufacturer Term |
Smart Keeper does not state a warranty term for this product on its official sites. Singular’s direct warranty is 1 year, and we support you locally for anything beyond it. |
Frequently Asked Questions
Is a key included?
No. This pack contains ten grey locks only. You need the grey Lock Key Mini (U04), sold separately. Order it together with the locks if you do not have one.
Will a key of another colour open it?
No. Smart Keeper states that locks open only with a key of the matching colour, and that Mini-series keys do not work with the Basic series. Tell us which Smart Keeper locks you already use and we match them.
Does it fit Micro USB or USB-A ports?
No. It is shaped for Mini USB-B ports. Micro USB-B, USB-A and USB-C each need their own Smart Keeper lock; send us a photo of the port and we tell you which one fits.
Is it a replacement for software port control?
No. It physically blocks the port, which stops casual use and makes controlled ports visible. For full control, combine it with device-control policies in your operating system.
Singular Expert Insight
We offer the UL04P1GY as the refill for an Essential Mini installation — if you do not own a grey Lock Key Mini (U04) yet, add one to the order. The mistake we see most is the USB-A Port Lock UL03, which belongs to the Basic series and uses the Lock Key Basic; check the port first. Physical locks work best alongside software device control, and every order comes with Singular’s local support in Cyprus. See our
security products or the
desktop accessories they protect. If you already run Smart Keeper locks, send us a photo of one fitted lock or its packaging and we confirm the series and colour before you order.
Buyer’s Guide
Buy it if
You hold a grey Lock Key Mini, or are ordering one, and need ten more Mini USB-B locks. The locks weigh a fraction of a gram and sit almost flush, so they can stay fitted permanently.
Skip it if
You have no grey Mini key and are not ordering one, or your port is Micro USB-B or USB-A. Check the port shape first — we help with that.
Also consider
Smart Keeper Lock Key Mini U04 in grey.
