Customers often refer to these as multi-plug outlet extenders. Depending on the design, you might also see them called:

• Wall taps or outlet extenders that plug directly into a standard wall outlet.
• Power strips with a short cord that provide four AC outlets.
• Wall-mount surge protectors that add four outlets plus surge protection.
• In-wall multi-outlet modules or panels that offer four plug-in points.

Each style serves a slightly different need—space-saving, travel-friendly, surge protection, or permanent installation. You can shop online for delivery or pickup and filter by features like USB ports, flat plugs, or safety listings such as UL/ETL.

Upgrading from a 3-prong to a 4-prong receptacle is typically more than a simple swap. A 4-prong setup uses separate neutral and ground and usually requires a 4-wire circuit, a compatible breaker, and adherence to local electrical codes.

• Consult a licensed electrician for evaluation, permits, and safe installation.
• If your goal is more plug-in spots, consider a 4-outlet wall tap or power strip that plugs into your existing outlet—no rewiring required.
• Avoid using adapters that defeat grounding or bypass safety features.

Walmart carries plug-in options with USB, surge protection, and space-saving designs that can be ordered for delivery or store pickup.

Most 4-outlet solutions on our site are plug-in, so they don’t require wiring. If you’re considering a hardwired in-wall module, it’s best handled by a qualified electrician.

• Turn off the breaker and verify circuit capacity before any work.
• Choose UL/ETL-listed, tamper-resistant components that fit your electrical box.
• Follow local code for AFCI/GFCI protection where required (kitchens, bathrooms, garages, etc.).
• Use a receptacle tester to verify correct wiring and grounding.

For most households, a plug-in wall tap or power strip provides four outlets quickly and safely. You can browse options with USB-A/USB-C, flat plugs, and surge protection for delivery or pickup.

The simplest way is using a wall tap or power strip that adds extra sockets without modifying wiring.

• Pick a model rated for your circuit (commonly 15A/125V) and check combined device wattage.
• Consider surge protection if you’re plugging in electronics.
• Look for features like USB-A/USB-C ports, a flat plug for tight spaces, or a stabilizing center screw.
• Avoid daisy-chaining multiple extenders or power strips.

If you want a permanent in-wall change, consult a licensed electrician and follow local code. Walmart offers a range of plug-in 4-outlet solutions you can order online for home delivery or store pickup.

Cruise policies vary, so it’s a good idea to confirm with your line before you pack. When allowed, guests often choose non-surge multi-plug adapters because many ships restrict surge protectors and extension cords.

• Look for compact, non-surge outlet splitters with four AC outlets.
• USB-A and USB-C ports can reduce the need for extra chargers.
• Choose UL/ETL-listed products and check the ship’s voltage and outlet type.

You can filter for non-surge travel-friendly models on Walmart.com and select delivery or pickup. Always review the cruise line’s guidelines to make sure your adapter meets current rules.