Corsair CX Series CX650M Semi-Modular 80 Plus Bronze 650W ATX/EPS Power Supply Unit (CP-9020103-UK)

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Identifiers
Model Corsair CP-9020103-UK
MPN Corsair CP-9020103-UK
Dimensions / Weight
Key Features
80 PLUS certification
The official efficiency certification level awarded to a power supply or other electrical device that meets the international 80 Plus standard, indicating superior energy efficiency compared to non‑certified products. Typical values include Bronze, Silver, Gold, Platinum and Titanium.
80 PLUS Bronze
ATX version 2.31
Cabling Type
The configuration of the power supply’s internal cabling, indicating whether the cables are fully modular, semi‑modular, or non‑modular. This attribute helps users understand how many cables can be detached for easier cable management and system customization.
Semi-Modular
Combined power (+12V)
The total electrical power available from the +12 V rail of a device, expressed in watts (W). This value indicates how much current can be supplied to components that rely on the +12 V supply and is useful for assessing overall system capacity or compatibility with high‑power peripherals.
648 W
Combined power (+3.3V)
The total electrical power that a device consumes or delivers, expressed in watts (W). It represents the overall energy usage of the product during operation and is useful for comparing efficiency, sizing power supplies, and estimating operating costs.
130 W
Combined power (+5Vsb)
The total electrical power supplied to the +5 V standby rail of a device, expressed in watts (W). It indicates how much energy is available for low‑power components that remain active when the main system is powered down or in standby mode.
15 W
Combined power (-12V)
The electrical power supplied to the device’s combined –12 V rail, expressed in watts (W). It indicates how much energy is available on that specific voltage line for components such as fans or auxiliary circuits.
9.6 W
Connectors 1 x 4+4-pin CPU +12V (EPS) 1 x 4-pin FDD Power 3 x 4-pin Molex 4 x 6+2-pin PCIe 6 x SATA
Cooling
The type of cooling mechanism used by a product, such as active fan‑based cooling, passive heat sinks, liquid cooling, or no active cooling. It indicates whether the device relies on airflow, conduction, or other methods to dissipate heat and helps users assess thermal performance and noise levels.
Fan
Edition
A brief statement indicating the edition or version of a product, such as "Reprint", "New Edition", or a numeric edition number like "2nd edition". It identifies which specific release of the item is being referenced.
CX650M
EPS 12V
Indicates whether the product includes an EPS 12V power connector, which is commonly used to supply additional voltage to high‑performance computer components such as CPUs and GPUs.
Yes
Fan location
The physical position of a fan within a product, such as top, side, bottom, rear or another specific area. This attribute helps users understand where airflow originates and how the fan integrates with the device’s design.
Top
Fans
The physical dimensions of a fan unit, expressed as the number of fans and their individual diameter in millimetres (e.g., "2 x 120mm"). This attribute helps users understand the cooling capacity and compatibility with cases or other components.
1 x 120mm
Floppy connector
The total count of physical connector ports present on a floppy drive or its support, indicating how many separate connections are available for power and/or data. This value helps users verify compatibility with power supplies, cables, or adapters.
1
Internal +12V Rails
The count and configuration of the +12 V power rails supplied by a computer power supply unit. Common values include "Single Rail", "Dual Rail", "Quad Rail" or combinations such as "Single/Multi Rail". This attribute helps users understand how many independent +12 V outputs are available for powering components, which can affect load distribution and reliability.
Single Rail
Max output current (+12V)
The maximum electrical current that a device can supply on its +12 V rail, expressed in amperes (A). It indicates the peak output capability of the power source for components that require 12‑volt power and is useful for matching devices with compatible power supplies or accessories.
54 A
Max output current (+3.3V)
The highest electrical current that a device can supply from its +3.3 V rail, expressed in amperes (A). This value indicates the maximum load capacity of the power supply or regulator for components powered at 3.3 V and helps users verify compatibility with devices requiring this voltage level.
25 A
Max output current (+5Vsb)
The highest electrical current that a device can supply to its +5 Vsb power rail under normal operating conditions. This value indicates the maximum load the +5 Vsb output can handle and helps users verify compatibility with components such as fans, LEDs, or other peripherals that draw power from this rail.
3 A
Max output current (-12V)
The highest electrical current that a device can deliver from its –12 V rail under normal operating conditions, expressed in amperes (A). This value indicates the maximum output capability of the –12 V supply and helps users verify compatibility with power supplies or other components that require this voltage level.
0.8 A
Maximum Efficiency at 230Vac
The highest percentage of input electrical power that a device can convert into usable output power when operating on 230 V alternating current. It indicates the peak energy conversion performance and helps consumers compare how efficiently different models use electricity.
85 %
Modular
Indicates whether a product supports modular components or systems, such as modular power supplies, network switches, or other hardware that can be expanded or replaced with compatible modules.
Yes
Modularity
Indicates the type of modularity a product offers, such as full modular, hybrid modular, or fully wired. The value describes how components can be added, removed, or replaced independently within the system.
Hybrid Modular
Motherboard Connector
The total number of electrical contacts in the ATX main power connector that supplies a computer system with power. Common values are 20+4‑pin (24 pins) and 24‑pin, indicating the standard ATX power interface used by motherboards and power supplies.
20+4-pin
Number of SATA connectors
The total count of physical SATA connectors available on the product. It indicates how many separate SATA ports are present, regardless of version or type, allowing users to assess storage expansion capacity.
2
Power supply unit (PSU) form factor
The physical configuration or design of a power supply unit, such as ATX, TFX, SFX, or 1U. It indicates the dimensions and mounting options that determine compatibility with computer cases and other hardware.
ATX
SLI/CrossFire
Indicates whether the product supports NVIDIA SLI or AMD CrossFire technology, allowing multiple graphics cards to work together for increased performance.
Yes
Sustainability certificates
A list of environmental, safety or quality certifications that a product has obtained from recognized authorities. Typical entries include RoHS, ENERGY STAR, CE, WEEE, TCO Certified, FCC, and other industry‑specific standards.
RoHS
Corsair

Corsair is a brand that specializes in making high-end gaming peripherals and components. Some of their most popular products include gaming keyboards, mice, headsets, and power supplies. Corsair has a strong reputation for quality and innovation, and their products are often used by professional gamers and enthusiasts.