The Best Splitters, Couplers & Adapters 2025

1. POE SPLITTER - iPort Surface Mount Power Adapter (Each) - Black

Naztech 14128 Adaptive Fast Charge Power Hub7

Power your tablet remotely with the help of this iPort power adapter. The universal design works with virtually any gang wall boxes for easy wiring and installation, and this splitter offers connection options using 24V DC power. This iPort power adapter offers compatibility with iPads and other 5V portable devices for versatile use.

2. AudioQuest - FLX-X Male-to-Female RCA Splitter - Black

Polymer fiber; highly polished ends; ergonomic plug; in-wall rated

This RCA splitter features solid long-grain copper conductors for reliable use and splits a signal from 1 male to 2 female RCA connectors.

3. AudioQuest - RCA 90˚ Female RCA > Right-Angle Male RCA Adaptor - Gold

Enjoy quality audio with this AudioQuest M21F-90S RCA adapter that features Solid Copper internal connections for reduced signal loss and distortion. The right-angle design allows optimal placement.

4. AudioQuest - 90° Narrow HDMI Adapter - Black

Only @ Best BuySupports resolution up to 4K Ultra HD (4096 x 2160 pixels)High Dynamic Range (HDR) pass-throughSilver content soldering, 24K gold-plated contactsCertified for in-wall installationLifetime limited warranty

Built for tight spaces, this AudioQuest HDMI90N HDMI adapter features a right-angle design and a short body.

5. JVC - Wireless 3D RF Emitter - Black

From our expanded online assortment; compatible with iPod, iPhone and select JVC in-dash decks; connects your device to a compatible in-dash deck; 7.9" length

Plug this JVC PKEM2G RF emitter into your JVC 3D projector to experience stunning 3D visuals through your JVC PK-AG3G 3D RF active-shutter glasses. The 30' wireless range extends connection in every direction for flexible connectivity.

6. StarTech.com - External Video Adapter - Black

Compatibile with Microsoft Windows Vista, Microsoft Windows 7, Windows 8 and Windows 10 operating systems; up to 1920 x 1200 external resolution; 2 years warranty

Enjoy the efficiency of a dual-monitor setup with this StarTech external video card. It lets you add a high-resolution monitor to your laptop or desktop, even if your existing computer lacks the capability to support a second screen. Share presentations and data with people in your office without crowding around a single screen thanks to this StarTech external video card.

7. AudioQuest - FLX-X Female-to-Male RCA Splitter

?From our expanded online assortment; compatible with FLX-X and RCA cables; solid long-grain copper conductors

Learn more about Magnolia Premium Installation This RCA splitter features solid long-grain copper conductors for reliable use and splits a signal from 1 female to 2 male RCA connectors.

8. IPort Surface Mount Power Adapter (Each) - Black

Supports up to 4K Ultra HD resolution, Ethernet pass-through and Power over Ethernet; receives uninterrupted signals through up to 328' of cable; Dolby Atmos, Dolby TrueHD and DTS Master Audio pass-through

Get a power boost for your PoE system with this iPort PoE injector. Simply hook it up to a PoE splitter and enjoy more power for the farthest reaches of your security camera setup or to power range extenders. This iPort PoE injector works with both CAT5 and CAT6 cables.

9. AudioQuest - FLX-MINI Splitter - White

500 sq. ft. cooling capacity; 10.8 amps; digital controls; auto drain technology; dual-hose operation; LCDI plug; 3 fan settings; activated-carbon air filter; washable prefilter

This adapter splits a male 3.5mm connection into 2 female 3.5mm connections and features solid PSC+ conductors to minimize distortion.

10. AudioQuest - F > RCA Female F-Type > Male RCA Adaptor - Gold

This Female F to Male RCA adaptor enables the secure connection of a cable with an F-connector on one end when a bridge to an RCA connector is required.