A power surge can cause fried circuits, melted wires, system crashes, corrupted files, create shock risks, and more.
And while unpredictable, its damage is preventable with surge protectors.
Whether you’re protecting your laptop, router, home office, or AV gear, the right surge protector device helps extend device life and safeguard your setup.
If you’re asking yourself…
- What is a surge protector, and how is it different from a power strip?
- How many joules do I need for my devices?
- What features should I look for in a high-quality surge protector?
- When is advanced surge protection necessary?
- Which Kensington surge protector is right for my home office, AV system, or shared workspace?
This guide breaks down how surge protectors work, what features to look for, and how to select the ideal Kensington surge protection device based on your environment and equipment.
What Is a Surge Protection Device?
A surge protection device (SPD) guards electronics from voltage spikes caused by lightning strikes, electrical grid fluctuations, or high-powered appliances switching on and off.
These voltage spikes can overwhelm delicate electronics, shorten device lifespan, or cause immediate failure.
The surge protector acts as a buffer between your device and the power source, diverting excess voltage into a ground wire before it reaches your gear.
Over time, this protective capacity is gradually reduced, which is why quality surge protectors also include indicator lights to show when protection is active.
If you’re looking for a surge protector for your home or office, there are specific terms you will frequently see:
- Joules rating: This indicates the maximum amount of energy the surge protector can absorb before it can no longer provide protection. A higher number means greater total protection.
- Clamping voltage: The voltage level at which the device starts diverting energy. Lower is better, as it means more protection (typically 400V or less).
- Response time: How quickly the protector reacts to a surge. Faster is better.
What Is a Power Strip?
A power strip simply adds more outlets but doesn’t necessarily protect your equipment from surges. These are often cheaper but may not meet electrical safety standards.
A power strip can include surge protection features, like Kensington’s. Make sure to read the specifics if you need both outlet expansion and protection.
Surge Protector vs. Power Strip
| Feature | Surge Protector (SPD) | Power Strip |
|---|---|---|
| Surge protection | Yes (joules-rated) | No |
| Safety certifications | UL® 1449 Standard or ETL® | Not required |
| Indicator light | Often included | Rare |
| EMI/RFI filtering | Common | Rare |
| Limited warranty coverage | Yes | Uncommon |
| Best for | Electronics, AV gear | Lamps, chargers, basic use |
What to Look for in a Surge Protector
Choosing a surge protector isn’t just about how many outlets you get. Here’s what really matters, explained simply:
- Joules rating: Go for 600+ joules for basic setups and low-risk devices and at least 1500+ for valuable electronics. This rating tells you how much energy the surge protector can absorb over its lifetime.
- Number and spacing of outlets: More outlets mean more convenience, but look for wide spacing between them to accommodate bulky chargers.
- Cord length: Measure your space before buying. A longer cord (8–16 feet) helps in conference rooms or behind desks.
- EMI/RFI filtering: Stands for Electromagnetic Interference and Radio Frequency Interference. This helps reduce background noise and interference, which is especially helpful in AV setups.
- Status indicator light: Indicates that the surge protection is still functioning. If the light goes out, the protection may no longer be active.
- UL® or ETL® certification: These are independent safety standards that verify the device has been tested to protect your electronics.
- Equipment limited warranty: Many high-quality surge protectors come with coverage in case connected devices are damaged.
Kensington Surge Protector Lineup
SmartSockets® Standard Adapter – 8 Outlets
The SmartSockets® Standard Adapter offers 2490 joules of protection, making it ideal for home offices and multi-device workstations.
It includes eight outlets, an 8-foot power cord, EMI/RFI filtering for reduced interference, and widely spaced outlets for bulky plugs. With a 1-year, $35,000 computer equipment limited warranty, it’s a solid pick for professionals.
SmartSockets® Table Top Surge Protector
Perfect for conference tables and shared desks, this circular tabletop model features 1500 joules of surge protection and a long 16-foot cord. Color-coded cable labels help teams manage shared power use. It includes EMI/RFI filtering and a $50,000 computer equipment limited warranty.
SmartSockets® Premium Surge Protector
The SmartSockets® Premium offers 1260 joules of protection, wide outlet spacing, and an 8-foot cord. Built-in EMI/RFI filtering ensures cleaner power for sensitive electronics, and it includes a $25,000 equipment limited warranty.
Guardian® 8-Outlet Surge Protector
A straightforward and reliable choice for general office or home use, this model delivers 1080 joules of protection and comes with a 6-foot cord and eight outlets. UL listed and backed by a $10,000 equipment limited warranty.
SmartSockets® Standard Surge Protector
With 945 joules of protection, this surge protector can be an excellent match for laptops, monitors, and routers in home offices. The 7-foot cord, EMI/RFI filtering, and color-coded outlets offer flexibility and organization. Includes a 1-year $15,000 limited warranty.
SmartSockets® Basic Surge Protector
Compact and cost-effective, the Basic model provides 670 joules of protection and a slim 6-foot cord. Best for small setups with a few essential devices. Comes with a 1-year $10,000 limited warranty.
Recommendations by Use Case
Home Office
If your desk includes a laptop, monitor, printer, and charger, choose a surge protector rated 2000+ joules with at least six outlets and EMI/RFI filtering. These features reduce electrical interference and help keep sensitive tech safe.
Entertainment and AV Systems
For TVs, receivers, speakers, and gaming consoles, look for EMI/RFI filtering and wide outlet spacing to fit chunky plugs. Higher joule ratings are essential to protect expensive electronics from surges.
Shared Desks and Hot Desking
In flexible office setups, accessibility and organization matter. A tabletop model with color-coded ports and a long cord helps multiple users connect devices safely.
Student Dorms or Minimalist Setups
If you’re powering a basic laptop and phone charger, a slim-profile surge protector with fewer outlets and lower joules is often enough.
Do You Need Advanced Protection?
Some environments and use cases benefit from more than just a surge protector:
- Whole-home surge protection: Ideal for homes in areas prone to storms or inconsistent grid power. These systems protect every outlet in the house and are installed by an electrician.
- Line conditioners: If you’re using high-end AV or recording equipment, line conditioners can stabilize voltage and eliminate noise—ensuring better performance for audio and visual fidelity.
- Smart protectors: These offer features like app-based power control or monitoring. If you’re managing remote equipment or want power data analytics, this might be useful. However, keep in mind that Kensington does not currently offer these models.
Summary Table for Kensington’s Surge Protector Devices
| Product | Joules | Cord Length | Outlets | Limited Warranty |
|---|---|---|---|---|
| SmartSockets® Standard Adapter | 2490 J | 8 ft | 8 | $35,000 |
| SmartSockets® Table Top | 1500 J | 16 ft | 6 | $50,000 |
| SmartSockets® Premium | 1260 J | 8 ft | 6 | $25,000 |
| Guardian® 8-Outlet | 1080 J | 6 ft | 8 | $10,000 |
| SmartSockets® Standard | 945 J | 7 ft | 6 | $15,000 |
| SmartSockets® Basic | 670 J | 6 ft | 6 | $10,000 |
Power and Protect
Not all power strips are surge protectors, and not all surge protectors are built the same.
Kensington’s SmartSockets® and Guardian® lines deliver certified protection, strong warranties, and design options for desks, conference rooms, and home offices.
Explore Kensington’s surge protection solutions and choose the model that meets your space, devices, and safety expectations.