Best Power Strips

Joule Rating and Surge Protection

The joule rating indicates how much energy a power strip can absorb before failing. For basic electronics, 1000-2000 joules suffices (like the Anker 2100J). For expensive equipment like home theater systems or workstations, choose 2500+ joules. Look for UL 1449 certification and indicator lights that confirm protection is active. Clamping voltage should be 400V or lower—anything higher allows dangerous voltage spikes through.

Number and Spacing of Outlets

Count both AC outlets and USB ports based on your actual devices. Standard 6-8 outlet strips work for most rooms, but workstations may need 10-12 outlets. Critically, check outlet spacing—widely-spaced or rotating outlets prevent bulky adapters from blocking adjacent sockets. Models with 1.5+ inches between outlets accommodate power bricks without waste.

Cord Length and Mounting Options

Cord length determines placement flexibility. 6-foot cords suit desks; 10+ foot cords work for wall-mounted TVs or distant outlets. Flat plugs fit behind furniture, while keyhole slots or mounting brackets enable wall/desk installation. Consider whether you need the strip portable or permanently positioned.

USB Ports and Smart Features

Built-in USB-A ports (2.4A minimum per port) eliminate wall adapters for phones and tablets. USB-C ports with 20W+ output can fast-charge modern devices. Some strips include individual outlet switches to cut phantom power draw, saving $50+ annually on standby consumption for idle equipment.