Smartkeeper UL03P2YL — USB-A Port Lock, Yellow, 100 pcs
100 locksUSB-AYellow colour codeKey U03 Basic
The Smartkeeper UL03P2YL is a pack of 100 USB-A port locks from the Smartkeeper ESSENTIAL Basic Series, in yellow. Each lock plugs into an empty USB-A port on a desktop, laptop, dock or kiosk, so nobody can plug in a USB stick, a charger or an unknown device, and it can only be released with the Smartkeeper Lock Key Basic (U03) of the same colour. The colours are not decoration: the ESSENTIAL line is colour-coded, so a yellow key opens yellow locks only. That lets you give each department, floor or security zone its own colour and its own key. The locks measure 12.3 × 4.6 × 10 mm, weigh 1 g each, grip the port with a “bump-bite” design and go in by hand in about two seconds. In practice, a 100-pack is the size for blocking every spare USB port across an office, a lab or a fleet of point-of-sale PCs, and blocked ports also stay free of dust.
Compatibility — check before buying:
You need a Smartkeeper Lock Key Basic (U03) in yellow to remove the locks. The key is a separate item and is not part of this 100-pack listing; a key of another colour, or a Smartkeeper PRO key, will not open these locks. These locks fit USB-A only — not USB-C, micro-USB or USB-B, which have their own Smartkeeper locks. Not sure it fits? Send us the model of your device, terminal or desk setup and we check it before you order.
Best For
✓ Spare USB-A ports on office PCs
✓ Point-of-sale and kiosk terminals
✓ Computer labs and classrooms
✓ Laptops and docking stations
✓ Separating departments by colour
✓ Keeping dust out of idle ports
Key Features
Colour-coded security
Only the Lock Key Basic of the same colour opens these locks, so each team or zone can have its own key.
Blocks what attackers use
Blocked USB ports stop USB sticks, keystroke loggers and unknown chargers on shared machines.
Small and discreet
12.3 × 4.6 × 10 mm and 1 g, with a bump-bite grip that holds tightly in the port.
100 in one pack
Enough to cover every spare USB-A port of a typical office in one order.
Technical Specifications
| Identification |
| Brand |
Smartkeeper (ESSENTIAL) |
| Product |
USB Port Lock UL03, Basic Series, yellow, 100 pieces |
| Part Number |
UL03P2YL |
| EAN / GTIN |
8809534690846 |
| Lock |
| Type |
USB Port Lock (UL03) |
| Fits |
USB Type-A ports |
| Size |
12.3 × 4.6 × 10 mm |
| Weight |
1 g |
| Colour |
Yellow |
| Key System |
| Series |
Smartkeeper ESSENTIAL, Basic Series |
| Key |
Lock Key Basic (U03), same colour |
| Colour Coding |
A key opens only locks of its own colour pattern |
| Not Compatible Keys |
Other colours, Smartkeeper PRO keys |
| Pack |
| Quantity |
100 port locks |
| Other Packs |
Smartkeeper also sells small kits that include a key |
| Using It |
| Planning |
Assign one colour per department or zone and keep a register of which key opens what |
| Fitting |
Push the lock fully into the port by hand; it latches in place |
| Removing |
Insert the Lock Key Basic of the same colour and pull the lock out |
| Keys |
Keep keys with IT or facilities, never at the desk |
| In the Box |
| Included |
100 yellow USB-A port locks |
| Not Included |
The Lock Key Basic (U03) — separate item |
| Warranty |
| Warranty |
1-Year Warranty (Singular) |
| Manufacturer Term |
Smartkeeper does not publish a warranty term on its official product pages. Singular’s direct warranty is 1 year; beyond that we assist you with any claim to the manufacturer. |
Frequently Asked Questions
Is a key included?
The Lock Key Basic (U03) is a separate item and not part of this 100-pack listing. You need one in yellow. Tell us and we quote the key with the pack.
Will a key of another colour open them?
No. The ESSENTIAL Basic Series is colour-coded: only a yellow Lock Key Basic opens yellow locks.
Will it fit USB-C ports?
No. The UL03 fits USB Type-A only. Smartkeeper makes separate locks for USB-C and other ports — ask us.
How many do I need?
One per port you want to block. Count the spare USB-A ports on each PC, monitor and dock; 100 locks cover a typical small office.
Singular Expert Insight
We recommend Smartkeeper USB port locks on every shared or public-facing PC, starting with the front ports. Pick one colour per zone, order the matching Lock Key Basic with the pack, and keep the keys with IT. Yellow is highly visible on dark PC cases and laptops. Every order is backed by Singular’s local support in Cyprus — if something does not fit or work as expected, call us and we sort it out with you. Browse more
security products for locks, port blockers and anti-theft mounts.
Buyer’s Guide
Buy it if
You want to block spare USB-A ports in bulk and use, or will buy, a yellow Lock Key Basic.
Skip it if
You need a key in the box, a cable lock, or USB-C blockers.
Also consider
Smartkeeper UL03P2OR — the same lock in orange.
