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Home > Hardware Reviews > PC Parts

Thursday, February 11, 2010
Nexus RX-5300 PSU

2. A closer look

The retail price for the Nexus RX-5300 PSU is around ~$110 (including VAT), a competitive price for a PSU of the 530Watt category.

The PSU is aimed at dual VGA systems, so if you plan to add more graphics cards or many internal devices, you will probably need to consider of a more powerful PSU. The Nexus RX-5300 PSU is backed by a 3-year warranty.

The black-colored package is quite simple as you can see in the picture below.

Into the box everything is well arranged and carefully packaged:

The Nexus RX-5399 is equipped with a 135mm cooling fan, quite enough to produce just 15dBA of noise at 60% load. The black color of the fan matches the overall look of the device. The PSU is made of polished steel and its gray color make it look really nice. Nexus has followed a honeycomb design for the rear side of the PSU. This allows the produced hot air to easily escape the main unit, keeping the internal temperature low. Nexus has also rounded the edges of the device for easier handling:

The retail package includes the RX-5300 power supply unit, many cables and mounting screws. We would like to see a manual and a power cord included there as well:

The PSU has the typical dimensions for the category (150x86x158mm) and should fit into any PC cases, except from small desktop or very basic tower designs.

The length of the cables reach the 41cm, which is a fair length for midi cases. But if you are having a full tower PC case the cables you would find these cables a little short. All the cables are sleeved, a very good feature for modular PSUs:


A label provides information about the PSU's specifications and ratings:


Model No.
AC Input
DC Output +3.3V
-12V +5VSB
Max Output Current 24A
0.5A 2.5A
Max Combined Power
Total Power

It's interesting to see that there is a single +12V rail with rated at 41A. This should be able to power modern systems with several storage devices and a medium-sized graphics cards installed without any problems.

Below you can see the modular interface of the PSU where you can connect the cables. As you can see there are two yellow PCI-express connectors but only one yellow cable has been included in the package.. a little bit strange don't you think?

Mounted on the main unit, the main power cables include the 20+4 pin main connector, a 6+2 pin PCI-e and a 8pin/4pin EPS/ATX12V power connector:

Below you can see all the modular cables available in the box:

Connectors Included #

ATX 24 pin & 20 pin compatible

EPS/ATX12V 4+4 pin

PCI-E 6 pin

PCI-E 6+2 pin


4 pin Peripheral


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