4 Way Extension Socket with USB & Type‑C — Individual Switch Control, Global Plug Options
The UNS-5K3U is a four-way extension lead that has four sockets, four switches, USB-A and USB-C ports. The extension lead has a total length of 332mm, is constructed out of fire-retardant polypropylene plastic, and provides a convenient solution to the problems of having too many devices and not enough wall sockets. Each of the four sockets on the extension lead has its own individual switch, which means when the socket is turned off, the device it powers is turned off as well, without the need to unplug the device. The USB ports on the lead are rated at 5V 2.4A and will charge a phone or tablet without the need for an external power adapter or an additional power socket. The four-way extension lead with USB ports is available with UK (BS 1363), EU (CEE 7/7), US (NEMA 1-15), CN (GB 1002-2008), and Thai (TIS 2365-2009) plug configurations, and is available with 2m, 3m, or 5m cables, for worldwide distribution.
Four Independent Switches — Power Control Per Socket: Most power strips have all of their sockets either powered or unpowered at the same time. The four-way extension lead has individual switches for each of the four sockets, which allows you to leave your router and desk lamp powered on while turning off the kettle or your phone charger, all from one extension cord. The switches are made from red copper and silver alloy, designed for 5,000 cycles without arcing and rated for the life of the extension lead.
USB‑A + Type‑C, 2.4A Output: The USB ports on the extension lead are rated 5V 2.4A combined and will enable you to charge your phone, tablet, e-reader, and wireless headphones directly from the extension lead. The UNS-5K3U has built-in USB charging ports so you don’t have to use one of the four regular AC power outlets for an adapter.
Built to Last with Fire-Retardant Manufacturing Materials
Safety and durability define the UNS-5K3U’s construction. The entire housing (both front panel and base) is molded from fire-retardant polypropylene (PP), providing essential protection against electrical fire risk. Inside, the socket contacts use 0.6mm phosphor copper with a fix circle ring design for consistent pin retention over 5,000 insertion cycles. The 15A 3-pin round socket variant upgrades to 0.7mm phosphor copper. The switch mechanism uses red copper with a Φ3.0×25mm silver alloy touch point for clean, low-resistance switching. Cable options include 3×0.75mm², 3×1.0mm², and 3×1.25mm² conductors in copper or aluminum-with-copper variants, giving you flexibility across different market price points.
SPECIFICATIONS
| Series | Extension series |
| Item Code | UNS-5K3U |
| Description | 4 Way Multi Extension Socket with USB-A/C, Individual Switches |
| Socket Count | 4 × Individually Switched Outlets |
| USB Ports | USB‑A + Type‑C, 5V 2.4A |
| Plug Standards | UK / EU / US / CN / Thai |
| Cable Length | 2m / 3m / 5m |
| Cable Specification | 3×0.75mm² / 3×1.0mm² / 3×1.25mm² |
| Housing Material | Fire‑retardant PP (Front & Base) |
| Switch Contact | Red copper, Φ3.0×25mm silver alloy touch point |
| Socket Contact | 0.6mm phosphor copper with fix circle ring (0.7mm for 15A round socket) |
| Cable Material | Copper / Aluminum with copper |
| Product Lifetime | 5,000 cycles |
| Warranty | 2 Years |
| Color | White |
| Dimensions | L 332mm × W 78mm × H 31mm |
| MOQ | 2,000 pcs per item |
| Packaging | Individual plastic bag + master carton |
Factory Direct to Wholesale & OEM Partners
Your Source for Multi Socket Extensions — Global Plug Standards
The UNS-5K3U Extension Socket with USB is manufactured for global distribution, with plug options covering the UK, EU, US, CN, and Thai markets from one production source. Three cable lengths and three cable specifications allow you to tailor the product to different retail price points. The fire‑retardant polypropylene housing and phosphor copper internals ensure a safety-focused design that meets the expectations of regulated markets. OEM branding on the housing, custom packaging, and flexible logistics support for importers and distributors worldwide.
Choosing the Right Extension Socket Configuration
Key selection criteria for importers and wholesalers stocking a 4 way extension socket with USB.
Plug Standard Selection by Market
UK plug (BS 1363) for United Kingdom, Ireland, and Commonwealth markets. EU plug (CEE 7/7) for European Union countries. US plug (NEMA) for North America. CN plug for China domestic market. Thai plug for Thailand and compatible Southeast Asian markets. The UNS-5K3U multi plug power strip is manufactured with the correct plug molded onto the cable — no adapters required.
Cable Length and Specification
2m cable suits desktop and bedside use where the wall socket is nearby. 3m is the standard all‑round length for most rooms. 5m covers larger spaces, floor‑to‑desk runs, and commercial applications. Cable conductor options — 3×0.75mm² for lighter domestic loads, 3×1.0mm² for general use, and 3×1.25mm² for higher‑draw equipment. Copper cable offers maximum conductivity; aluminum‑with‑copper provides a cost‑effective alternative.
Individual Switches — A Key Selling Point
Each of the four sockets on this extension lead has its own rocker switch. This allows end users to leave essential devices powered while switching off others — saving standby power and reducing wear on appliance plugs and sockets. For retail, this is a strong differentiator against basic switched extensions where all outlets are controlled by a single master switch.
Frequently Asked Questions
Can I plug high-power appliances into this extension socket?
The UNS-5K3U is designed for standard domestic and office appliances — lamps, chargers, TVs, computers, and small kitchen devices. For high‑power appliances like electric heaters, kettles, or air conditioners, always connect directly to a wall socket. The total combined load across all four sockets should not exceed the rating of the wall outlet supplying the extension.
Does the USB still charge when the individual switches are off?
Yes, the USB‑A and Type‑C ports operate independently from the four individual socket switches. They provide 5V 2.4A charging as long as the extension socket is plugged into a live wall outlet. You can charge your phone and tablet via USB while all four 13A sockets are switched off.
What plug standards are available for this extension socket?
The UNS-5K3U is available with UK, EU, US, CN, and Thai plug standards molded onto the cable. The socket type on the extension body matches the plug standard — UK models accept UK 3‑pin plugs, EU models accept Europlugs, and so on. Specify your market’s plug standard when ordering.
Can I get a sample before placing a bulk order?
Yes, we encourage B2B buyers to evaluate the extension socket’s build quality, switch action, and USB charging performance before volume production. Contact our sales team with your preferred plug standard and cable length to arrange sample shipment.
What is the MOQ for wholesale extension sockets?
The standard MOQ is 2,000 pieces per item code, with flexible configuration of plug standard, cable length, and cable specification within the same production batch. Contact us for volume pricing tiers, current lead times, and OEM branding options.
