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Dell SB521A Slim Sound Bar Speaker - 3.60 W RMS

  • Speaker Details - Sound bar - stereo - 180 - 20000 Hz CFR - active
  • Connectivity - USB
  • Warranty - 3 Years Limited Hardware with Advanced Exchange Service
  • Included Accessories - Security loop, USB cable (0.15m)
Overview
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  • The promise of superior audio clarity

    With the world's slimmest and lightest soundbar, you get to enjoy rich and crystal-clear audio with powerful 3.6W RMS speakers offering a wide frequency response range of 180Hz to 20kHz. Stay productive and never miss a call or an alert again.

    A neat audio solution for your monitor

    The soundbar magnetically snaps on to your Dell monitor, allowing you to tilt, swivel and pivot your monitor in any direction, without getting in the way. The soundbar's USB cable plugs neatly to the USB-A port at the back of the monitor, so it's hidden from view.

    Easy to setup and secure

    The Dell Slim Soundbar offers easy installation requiring no software, power cord, and batteries. Simply plug in the soundbar cable to your monitor's USB-A port. Safeguard your soundbar by locking it with the included security chain and an external lock (lock not included). A 3-year warranty offers you added peace of mind.

Warranty & Returns

Warranty, Returns, And Additional Information

Return Policies

    We want to ensure your holiday shopping this year is hassle-free. That’s why we’re automatically extending our return policies on almost every product! For purchases placed between November 1st, 2026 and December 31, 2026 you will have until January 31, 2027 to return your product.

  • Return for refund until: January 31, 2027
  • Return for replacement until: January 31, 2027
  • This item is covered by Newegg.com's Extended Holiday Return Policy.
  • Read full return policy for details.
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The Dell SB521A is a slim, USB-connected stereo sound bar with 3.6 W RMS output, suited to desktop users who want audio without adding separate speakers to their workspace.

Recommended For

  • Dell select-monitor owners who want to add desktop audio without separate speakers: the SB521A magnetically attaches beneath compatible monitors and connects over USB for a low-clutter setup.
  • Desk-based workers who mainly need audio for calls, alerts, and spoken content, and prefer a USB-powered speaker that needs no separate power cord or software setup.
  • People who mostly watch videos or listen to podcasts at their desk and value a compact, monitor-mounted alternative to headphones over a wide stereo soundstage.
  • Users with a compatible Dell monitor and a tidy or shared desk who want a small speaker that stays attached when they adjust the monitor and can be secured with a separate lock.

Spec Summary

AttributeValue
Best ForBusiness desktop audio setups, especially with the listed compatible Dell monitors
Audio Configuration And PerformanceTwo-channel stereo soundbar with active amplification and dynamic drivers, rated at 3.6 W output and 89 dB signal-to-noise ratio; frequency response is listed at 20 kHz
Connectivity And PowerUSB-connected and USB-powered, with plug-and-play setup
CompatibilityListed for Dell UltraSharp 24 USB-C Monitor U2421E, Dell 27 4K USB-C Monitor P2721Q, Dell 32 USB-C Monitor P3221D, and Dell 34 Curved USB-C Monitor P3421W
Design And DimensionsBlack rectangular soundbar with a slim 11.7 × 0.9 × 0.7 in profile; item weight is 0.25 lb, and the enclosure is listed as plastic or metal
Included Items And MountingTabletop mount; package contents include a security chain and documentation
Model IdentifiersDell SB521A Soundbar