Shopping Guides · Guide

What Size UPS Do I Need for My Computer, Router or CCTV?

Add up the watts, add 30%, and pick the UPS. Here is the quick method.

What happens to your security when the power goes off?

Read on: it takes a few minutes and could save you a lot more than that.

In this guide you will see:
  • Add watts, add 30% headroom.
  • VA is not watts: watts are about 60 to 70% of VA.
  • Backup time depends on the battery size.
By Qyvea LimitedPublished 2026-10-07Updated 2026-10-072 min read
On this page01. What to look for before you buy02. Best prices in stock today03. Why buy from Qyvea04. FAQ
What Size UPS Do I Need for My Computer, Router or CCTV?
Quick answer

Add up the watts of what you want to protect, add about 30% headroom, and choose a UPS whose watt rating is above that. A typical desktop with monitor needs about 650 to 1000 VA; a router and fibre box need a tiny UPS; a CCTV recorder with cameras needs a UPS sized to the total load.

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Key takeaways

  • Add watts, add 30% headroom.
  • VA is not watts: watts are about 60 to 70% of VA.
  • Backup time depends on the battery size.
  • Do not plug in laser printers or heaters.

01What to look for before you buy

LoadTypical UPS
Router and fibre boxMini UPS or small battery
Desktop and monitor650 to 1000 VA
CCTV recorder and 4 cameras650 to 1000 VA
Small office (5 PCs)1 to 3 kVA
ServerOnline UPS, sized to load

02Best prices in stock today

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Batteries and inverters for longer backupLive prices from the Qyvea store
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Prices update live from the Qyvea store. Tap any product to see full specs, stock and delivery options, or ask us on WhatsApp for a recommendation.

03Why buy from Qyvea

Why Kenyans buy from Qyvea

  • Genuine branded products sold with the manufacturer's warranty (typically 6–24 months, varies by product)
  • 7-day returns and exchanges; damaged or wrong item? Report it within 48 hours for a free replacement or full refund
  • Pay with M-Pesa, bank transfer or card; refunds go back the same way
  • Free delivery in Nairobi on orders over KES 5,000, and delivery across Kenya
  • Delivered to your door, dispatched once payment is confirmed, rated 4.6/5 from 57 Google reviews (bought from us? leave a review)
  • Talk to a person on WhatsApp 0113 301 244, usually within 30 minutes

Full details: return & refund policy.

04Frequently asked questions

What is the difference between VA and watts?

VA is the apparent power; usable watts are lower, often around 60 to 70% of VA.

Can I run a printer on a UPS?

Avoid laser printers: they draw big surges. Use a surge protector.

Why customers choose Qyvea

Genuine brandsManufacturer warranty on what we sell, so you are not gambling on the box.
One team, start to finishThe people who advise you also install and support it.
Fast answersWhatsApp replies usually within 30 minutes, and delivery within 24 hours in Nairobi.
Easy to buyPay by M-Pesa, bank transfer or card. Free delivery in Nairobi on orders over KES 5,000.
Risk taken off you7-day returns and exchanges on products, and a workmanship warranty on installations.
Customers say soRated 4.6/5 from 57 Google reviews.

Your next step takes one minute: send us a photo of the place on WhatsApp and we will tell you what it needs.

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