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A 25U rack is 43.75 inches tall inside. See full cabinet height, depth options and a 6U to 42U chart before you measure your room.

Size your UPS in 6 steps. Add up watts, convert to VA, add 25% headroom and check runtime, with a worked example you can copy.

Not sure what UPS to buy? Use our quick chart to match 600VA to 1500VA+ to your router, PC, NAS or server, and avoid buying too small.

Calculate PDU load in 3 steps. Get the watts, amps and volts formula, the 80% rule and a worked 208V example to avoid tripped breakers.

How much does an APC UPS cost? See price ranges from $70 Back-UPS to $2,500 Smart-UPS, plus battery costs and how to avoid overpaying.

The Ryzen 5 5600X has 6 cores and 12 threads. Get clock speeds, cache, TDP, socket and a 5600 vs 5600X comparison in under a minute.

Not sure where to buy IT gear? Compare CDW, Insight, SHI, Dell and local VARs on price, support and licensing before you request a quote.

What is the Ubiquiti Dream Machine? See what this all-in-one UniFi router does, how the UDM, Pro and SE differ, and if it suits your...

How to Streamline Power Distribution Design for Multi-Site Deployments

Surge protector beeping? Find out whether it's really a battery backup, what the lights mean, and how to fix wiring faults, overload or worn-out protection.