FREE SHIPPING on orders over $200 Australia Wide - some exclusions apply, click here for more details
NSW Lockdown: Our stores are open for your essential office equipment, with restrictions. Free Shipping* available Australia Wide on most orders over $200. Please allow for some delay in order processing and shipping. Please click here for more information.

Cooler Master MASTERWATT 550W 80+ BRONZE Power Supply Unit

Item No:
$91.25 RRP $99
Delivery: Dispatch in 3-7 days
Pickup: Check availability
Payment options

Cooler Master MASTERWATT 550W 80+ BRONZE Power Supply Unit


Total power The total power that is needed by the device, or the total power produced by the device.
550 W
AC input voltage The voltage of the AC electricity that is inputted into the product.
100 - 240 V
AC input frequency
50/60 Hz
Input current
4 - 8 A
Power Factor Correction (PFC) type
Combined power (+3.3V)
110 W
Combined power (+12V)
550 W
Combined power (+5V)
110 W
Combined power (-12V)
3.6 W
Combined power (+5Vsb)
15 W
Max output current (+3.3V)
20 A
Max output current (+12V)
45.8 A
Max output current (+5V)
20 A
Max output current (-12V)
0.3 A
Max output current (+5Vsb)
3 A
Hold time
16 ms
Power Good signal delay range
100 - 500 ms
Power protection features Features that protect the device against power problems e.g. overload.
Over current, Over power, Over voltage, Short circuit, Under voltage

Ports & interfaces

Motherboard power connector The way in which the motherboard is connected to the power supply.
24-pin ATX
Motherboard power cable length
55 cm
Number of SATA power connectors
SATA power cable length
500,620,860 mm
Peripheral (Molex) power connectors (4-pin) White 4-pinned connector used to connect a peripheral to the power supply.
Peripheral (Molex) power cable length
500,620 mm
PCI Express power connectors (6+2 pin)
PCI Express power cable length
67 cm
CPU power connector (4+4 pin)
CPU power cable length
60 cm
Floppy drive power connector
Floppy disk drive connector


80 PLUS certification
80 PLUS Bronze
Purpose What the product is used for.
Power supply unit (PSU) form factor
ATX version ATX (Advanced Technology eXtended) is a motherboard form factor specification developed by Intel in 1995. The specification defines the key mechanical dimensions, mounting point, I/O panel, power and connector interfaces between a computer case, a motherboard and a power supply. There are many versions of ATX including ATX12V 1.x and ATX12V v2.3.
Bearing technology
Mean time between failures (MTBF) Statistical model used to indicate product/mechanism reliability; expressed in hours and percentage of duty cycle. This number (in hours) does not indicate the mean time before failure for a single unit/mechanism.
100000 h
ErP 2013 Lot 6, CCC, CE, TUV-RH, RCM, EAC, cTUVus, FCC, BSMI, KC,CB


Product colour The colour e.g. red, blue, green, black, white.
Cooling type The method used to cool the device or to cool the air around the device.
Fan diameter The size of the fan, measured by the distance from one side of the fan to the other, via a straight line going through the middle of the fan.
12 cm
Number of fans The quantity of fans (apparatus with rotating blades that creates a current of air for cooling or ventilation).
1 fan(s)

Operational conditions

Operating temperature (T-T) The minimum and maximum temperatures at which the product can be safely operated.
0 - 40 °C

Weight & dimensions

Width The measurement or extent of something from side to side.
150 mm
Depth The distance from the front to the back of something.
140 mm
Height The measurement of the product from head to foot or from base to top.
86 mm
Weight Weight of the product without packaging (net weight). If possible, the net weight is given including standard accessories and supplies. Please note that sometimes the manufacturer leaves out the weight of accessories and/or supplies.
1.61 kg

Packaging data

Package width The distance from one side of the packaging to the other.
266 mm
Package depth The distance from the front to the back of the packaging.
194 mm
Package height The distance from the top to the bottom of the packaging.
112 mm
Package weight Weight of the packaged product.
1.97 kg

Logistics data

Quantity per pallet Quantity of a single product per pallet. If more than one product is packed per carton; this is the number of products (not number of cartons) per shipping pallet.
24 pc(s)
Master (outer) case width
58.2 cm
Master (outer) case length
27.9 cm
Master (outer) case height
21.8 cm
Quantity per master (outer) case
5 pc(s)
SKU 233765
Brand Coolermaster
Product Condition Brand New/Unused
PSU Form Factor ATX / PS2
Stock Availability Available for Shipping