Cooler Master NA90 Universal Notebook PSU Review

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Destroyed Your OEM PSU?

Notebooks have an unnecessarily hard life.  People tote them just about everywhere, but most of them are no more rugged than a child’s plastic toy.  In spite of batteries (or perhaps because of), people tether their portable computers to their power adapters all of the time, which have a tendancy to get tugged, pulled and bent, eventually resulting in a broken power brick.

Buying a replacement power adapter for your notebook is practically an inevitability, so why not purchase one a “universal” adapter that can be used with your other (or future) notebook computers?  What features should you look for when shopping for one of these items, anyway?  Cooler Master has a line of Universal Notebook Power Adapters that should fit most consumers, and today we are looking at their NA90 Universal Notebook Power Adapter.

Here’s the marketing fluff:

NA series universal notebook power adapters are a great back-up for your notebook adapter, which are energy star 5.0 certified, as an endorsement for eco-friendly design. Included are nine different tips, you will have no problem powering on and/or charging your notebook (check our website for  complete listings). With up to 90% efficiency and a robust design, the NA 65 and NA 90 are suited for any business traveler.

 

Features
  • Up to 90% efficiency to certified energy star level V.
  • LED indicator:blue for power-on.
  • 9 different tips compatible with most laptops.
  • Purse-string bag for cable management and dustproof function.
  • Easy-to-install tips.
Specifications
Model RP-090-S19A-J1
Dimension 58 x 32 x 134 mm ; 2.28 x 1.26 x 5.28 inch
Input Voltage 100-240Vac full range
Input Frequency Range 50-60 Hz
Efficiency Up to 90%
Protection OVP/ OTP / OCP / SCP
Output Rating 19Vdc / 4.74A
Output Power 90W
LED Indicator Blue LED for power on
Operation Temperature 5 ~ 40°C

 

On the next page we test the unit with several laptop computers…
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