Tripp Lite SK30USB Review: Compact But Limited
A surprising number of travelers swear by the Tripp Lite Surge Protector Power Strip with USB (SK30USB), giving it a solid average score of 7.5/10 across platforms. While marketed as a compact, three‑outlet protector with 540 joules of suppression and dual USB ports, user feedback paints a nuanced picture: excellent portability and convenience, but compromised by tight outlet spacing and limitations in high‑risk surge environments.
Quick Verdict: Conditional buy
| Pros | Cons |
|---|---|
| Compact direct plug‑in design fits tight spaces | Outlets positioned too close—often only two usable |
| Dual USB ports for phones/tablets | Not ideal for high‑risk surge areas (lower joule rating) |
| Simple installation with mounting screw option | No cord—limits flexibility |
| Lifetime warranty and $5,000 equipment insurance | Heavy for travel; plug does not fold |
| Green LED protection indicator also functions as nightlight | Some users report reduced power when charging multiple devices |
Claims vs Reality
The SK30USB is advertised as converting a single wall outlet into “3 surge‑protected outlets plus two 2.1A USB ports” with “fast charging for portable devices.” For those who work in desk or kitchen counter setups, this rings true. A verified Best Buy buyer noted: “Purchased this for a vacation trip so we could plug in multiple devices, plus have some surge protection… worked flawlessly.”
But digging deeper into user reports, that “three outlet” claim doesn’t always hold in practice. Multiple Amazon and Looria reviewers discover that the spacing is too tight for standard plugs, making the third slot unrealistic. “It’s actually only two outlets… the outlets are way too close to use all three, even with regular size plugs,” wrote one Amazon customer, rating it 3/5.
Another key marketing point is travel readiness. While it is small and direct‑plug, several users found physical design choices reduced portability. “It’s heavy and the plug part does not fold in… had to buy a different one for a cruise,” explained Best Buy user Nattoni. Those expecting international travel compatibility were disappointed—one Amazon reviewer bluntly stated: “Not for travel outside 120v areas… there’s no reset, so it’s a use‑and‑lose surge protector.”
Cross-Platform Consensus
Universally Praised
Compactness is the star here. Teachers, travelers, and home office users alike mention it “fits flat against the wall” and “is perfect for a kitchen outlet when you need extra USB.” Reddit users highlight the convenience of having charging ports integrated, with one noting: “Since we’re only plugging in one charger instead of five, this leaves the other two outlets free for our two laptop chargers.”
The built‑in USB ports earn frequent applause. Best Buy reviewer Linda described it as “nice night light” plus the ability to “charge devices without needing additional chargers.” For hotel stays or overnight trips, the simplicity of plugging directly into a wall was a major plus—no tangled cords, minimal footprint.
Durability also sees positive consensus. Some have used SK30USB units for years in high‑traffic environments without failure. One Reddit story celebrates, “this little jewel just saved my brand new phone” during a lightning strike, with the surge protector burning out but keeping the device safe.
Common Complaints
Outlet spacing is the single most repeated issue, leading many to consider it effectively a two‑outlet device. This affects users who rely on chunky charger bricks, such as photographers with battery chargers or gamers with console adapters.
Flexibility in placement is another sore point. With no extension cord and direct‑plug design, positioning is limited to where your wall outlets are. Reddit users flag this as especially problematic in older hotels or offices with inconvenient outlet locations. As one traveler noted, “cord was not long enough to reach the power outlet if I set the power strip on top of the nightstand.”
Surge capacity is functional for everyday environments but draws criticism from those seeking heavy‑duty protection. A sentiment repeated on Twitter/X is that “540 joules may not be suitable for high‑risk environments,” such as areas prone to frequent lightning storms or unstable power grids.
Divisive Features
The green LED indicator’s dual role as a nightlight splits opinion—some appreciate the low‑glow guidance at night, others find it intrusive in bedrooms. Likewise, build weight is a mixed point. “Solidly built” is praised for durability, yet “heavy for travel” frustrates minimalists packing carry‑on bags.
USB charging performance earns both praise and doubt. While many say it charges smartphones and tablets efficiently, a minority claim “power is reduced when two devices are plugged in” or that ports failed with certain devices, hinting at variability in charging draw depending on setup.
Trust & Reliability
On the reliability front, several multi‑month or multi‑year accounts praise its defensive abilities against surges. The lightning‑strike story from Reddit stands out—protectors sacrificed themselves but saved expensive electronics. This aligns with marketing claims of automatic shut‑off when protection circuits are compromised.
However, warranty disputes emerge in edge cases. One frustrated buyer recalls, “I called Tripp Lite… they said no… I was trying to charge with more than the rated amperage,” suggesting an unwillingness to honor claims when usage pushed limits. Still, most routine use seems well‑supported, and the “ultimate lifetime insurance” gives occasional peace of mind.
Alternatives
The SK30USB often gets compared to the Tripp Lite Protect It! 3‑Outlet Travel‑Size Surge Protector. That variant has a cord and slightly different outlet spacing, making it better for odd outlet placements, but forgoes the low‑profile wall hug of the SK30USB. If international compatibility is needed, neither model excels—reviews repeatedly state 120V limitation. Another alternative from the same line with higher joule ratings may suit high‑risk zones but will be larger and less travel‑friendly.
Price & Value
Current prices float from about $25–$40 new, with eBay resale values around $22–$40 depending on condition. Price drops tend to occur during sales events; historical tracking shows a dip as low as $20.99 at Best Buy. Community buying tips suggest grabbing multiples during sales to outfit various rooms—especially for high‑use areas like kitchens or dorms—while recognizing it may not replace a high‑capacity floor strip for entertainment systems.
FAQ
Q: Can all three outlets be used at once?
A: Officially yes, but many users find the spacing too tight for bulky plugs, making only two usable for typical charger blocks.
Q: Is it safe for international travel?
A: No, it’s designed for 120V areas only. Using it in non‑compatible voltage environments can damage the unit.
Q: How fast are the USB ports?
A: Combined 2.1A output is fine for phones and tablets, but speed may drop when charging two devices simultaneously.
Q: Does it have a cord?
A: No, it’s a direct plug‑in, which benefits compactness but reduces placement flexibility.
Q: What happens when the green LED goes out?
A: That means protection has failed; you can return it under lifetime warranty for a replacement.
Final Verdict: Buy if you want a compact, integrated USB charging surge protector for home or travel within 120V regions; avoid if you need wide‑spaced outlets or heavy‑duty surge protection. Pro tip from the community: pair it with a short extension cord to overcome outlet placement issues and maximize usability.






