ASRock Challenger CL-850G 850W 80 Plus Gold PSU ATX3.1
ASRock
ASRock Challenger CL-850G 850W 80 Plus Gold PSU ATX3.1
The ASRock Challenger CL-850G 850W 80 Plus Gold PSU ATX3.1 is a fully wired power supply built for desktop PC builders who want dependable efficiency and modern GPU support without overspending. It meets the ATX 3.1 and PCIe 5.1 standards, making it compatible with the latest graphics cards, and backs that with a full suite of hardware protections and a 5-year warranty.
Why this product
80 PLUS Gold efficiency certified
Gold-rated efficiency means less wasted energy and less heat generated inside the case, which benefits both running costs and system longevity.
ATX 3.1 and PCIe 5.1 ready
It includes a native 12V-2x6 (12+4pin) connector with dual-colour design, meeting the PCIe 5.1 standard for current high-end graphics cards and future compatibility.
Automatic intelligent fan control
The Auto iCool mode adjusts the 120mm golf-blade fan speed based on load, reducing noise during light workloads and ramping up only when the system demands it.
Full protection suite included
Over-current, short-circuit, over-voltage, under-voltage, over-temperature and over-power protections are all built in to guard components across normal and extreme power events.
Classic Green connectors for easy installation
ASRock's colour-coded green connectors let builders confirm at a glance whether each cable is fully seated, reducing the risk of loose connections during build or maintenance.
5-year warranty for long-term confidence
ASRock backs this unit with a 5-year warranty, which is notably longer than the 2–3 year coverage common at this price tier.
- Wattage850W
- Efficiency Rating80 PLUS Gold
- ATX VersionATX 3.1
- PCIe CompatibilityPCIe 5.1 Ready
- ModularNon-Modular (Fully Wired)
- Warranty5 Years
- Dimensions (L × W × H)140 × 150 × 86 mm
- ColourBlack
- SKUASR-739
- EAN4710483948367
- Compatible with ATX 3.1 motherboards — includes a standard 24-pin motherboard connector.
- Supports PCIe 5.1 graphics cards via the native 12V-2x6 (12+4pin) connector, covering current flagship GPUs.
- Works with dual-CPU or high-power CPU configurations through two 4+4pin EPS 12V connectors.
- Accepts wide-range AC input (100–240V, 50/60 Hz), making it suitable for use in most countries worldwide.
- Non-modular design: all cables are permanently attached. Ensure your case has adequate cable management space before purchasing.
- Not compatible with SFX or SFX-L form-factor cases — this is a standard ATX unit measuring 140 × 150 × 86 mm.
Best for
- Mid-to-high-end gaming PC builders who need PCIe 5.1 GPU support and 850W of continuous power at Gold efficiency.
- Value-conscious builders who want a long warranty (5 years) without paying for a fully modular unit.
- Builders prioritising protection — six hardware protection types (OCP, SCP, OVP, UVP, OTP, OPP) cover a wide range of fault conditions.
- Quiet desktop builds where light-load silence matters — Auto iCool fan control reduces fan activity under low demand.
- Builders in varied mains environments who need a PSU that accepts 100–240V input without a manual voltage switch.
Trade-offs
- Small-form-factor builds — at 140 × 150 × 86 mm this is a standard ATX unit and will not fit SFX or SFX-L cases.
- Builders who prefer tidy, cable-free interiors — this is a fully wired non-modular design, so all cables are always present regardless of whether they are used.
- Systems requiring more than four legacy 6+2pin PCIe connections — only four such connectors are included alongside the single 12V-2x6 connector.
- Storage-heavy workstations with many peripherals — with only two 4-pin peripheral connectors and four SATA connectors, connector count may fall short for high-drive-count configurations.
With ASRock Classic Green connectors, users can easily see if the connector has been plugged properly.
The Challenger series is crafted for value-conscious users, offering 80 PLUS Gold models in 850W, 750W, and 650W options, as well as 80 PLUS Bronze models in 750W, 650W, and 550W.
Full suite of protections to keep all components safe during normal to extreme power levels.
ASRock offers an outstanding 5 –Year warranty, guaranteeing long term reliable and peace of mind operation.
General
| Brand | ASRock |
|---|---|
| Model | CL-850G |
| Series | Challenger |
| Colour | Black |
| Dimensions (L × W × H) | 140 × 150 × 86 mm |
| Warranty | 5 Years |
Power & Efficiency
| Wattage | 850W |
|---|---|
| 80 PLUS Efficiency | Gold |
| ATX Version | ATX 3.1 |
| PCIe Compatibility | PCIe 5.1 Ready |
| Continuous 12V Output | 70.9A |
| Total Power Excursion | 200% |
| Input Voltage | 100 – 240V |
| Input Frequency | 50/60 Hz |
| 5V BOOST | Built-in |
| MTBF | >100,000 Hours at 25°C |
Cooling & Reliability
| Fan | 120mm Golf-Blade Fan (Sleeve Bearing) |
|---|---|
| Fan Control | Auto iCool Intelligent Fan Control |
| Capacitors | All Taiwanese |
| Protections | OCP, SCP, OVP, UVP, OTP, OPP |
| Modular | Non-Modular (Fully Wired) |
Connectors
| Motherboard | 1 × 24-pin (Sleeved) |
|---|---|
| EPS 12V CPU | 2 × (4+4pin) |
| PCIe 5.1 (12+4pin) Dual Colour | 1 |
| PCIe (6+2pin) | 4 |
| 4-pin Peripheral | 2 |
| SATA 5-pin | 4 |
Shipping
All our products are shipped from the United Kingdom within 24 to 48 hours of purchase. See our Shipping and Returns page for full details.
Returns
- Tech Syndicate offers a full money-back guarantee on all purchases made in our store. If you are not satisfied with your purchase, we will provide a full refund, no questions asked.
- Refunds are available within 45 days of delivery.
- After the 45-day period you are no longer eligible for a refund, so we encourage you to try the product within the first few weeks to make sure it fits your needs.