RASURBO Real & Power 550 W 3

RASURBO Real & Power 550 W Review

Packaging, Contents & Exterior »


RASURBO RAPM550 Features & Specs
Max. DC Output550W
Efficiency80 Plus
Operating temperature10°C - 50°C
ProtectionsOver Voltage Protection
Under Voltage Protection
Over Current Protection
Over Power Protection
Short Circuit Protection
Cooling135 mm Sleeve Bearing Fan (DFS132512H)
Dimensions150 mm (W) x 86 mm (H) x 160 mm (D)
Weight1.7 kg
ComplianceATX12V v2.3, EPS 2.91
Warranty2 years
Price at time of review60€

All protections, besides Over Temperature are present. Price is on the low side but unfortunately the same goes for warranty which is only two years.

RASURBO RAPM550 Power Specs
Max. Power24A15A28Α20A3A0.3A
Total Max. Power550W

There are two +12V rails with non-matchd power distribution. The combined maximum power of +12V is only 70W below the unit's max rated capacity. Strangely the 5V rail is rated much lower than the 3.3V one, at only 15A max.

Cables & Connectors, Power Distribution

Native Cables
ATX connector (510 mm)20+4 pin
4+4 pin EPS12V/ATX12V (580 mm)1
Modular Cables
6+2 pin PCIe (500 mm)2
4 pin Molex (500 mm+150 mm+150 mm) / FDD (+150 mm)3 / 1
SATA (500 mm+150 mm+150 mm)3
SATA (500 mm+150 mm)8

The number of peripheral connectors is limited. Also we would like to see one or, even better, two more SATA connectors. We are a bit surprised that RASURBO did not include an additional SATA or peripheral cable in the bundle since one connector is left unused on the modular panel when all provided SATA/peripheral cables are connected. Cable length in general terms is sufficient and the distance between connectors is the recommended by ATX spec. Finally all wires have 18 AWG size.

Power Distribution
12V1ATX, Peripheral

Power distribution is not good since the EPS connector feeds from the same +12V rail with the two PCIe connectors, which normally should be on a different rail. On top of that 12V2 is weaker than 12V1 by 8A! This is really weird. Either the power specifications on the manual/label of the PSU are wrong or the manufacturer did not choose the optimum power configuration for this model.
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