Power supplies / Compare

Fractal Design Ion 3 Gold 1000W vs Montech Century II 1050W

A

Product A: Fractal Design

Ion 3 Gold 1000W

43 of 66 known

Change Fractal Design Ion 3 Gold 1000W

Compare the Montech Century II 1050W with

Search power supplies

B

Product B: Montech

Century II 1050W

54 of 66 known

Change Montech Century II 1050W

Compare the Fractal Design Ion 3 Gold 1000W with

Search power supplies

All 66 fields

Every value links to where we found it.

Only differences

AFractal Design Ion 3 Gold 1000W

BMontech Century II 1050W

General

5 of 12 differ

Series

Ion1Maker product pagefractal-design.com/products/power-supplies/ion-series/ion-3-gold/ion-3-gold-1000w-blackRead 15 October 2026The page URL sits under the ion-series path.

Century II1Maker product pagemontechpc.com/century-ii-1050wRead 14 October 2026

Model numbersiMaker identifiers for this exact model and its listed variants. Excludes sibling models and other generations.

FD-P-IA3G-100, FD-P-IA3G-1011Maker product pagefractal-design.com/products/power-supplies/ion-series/ion-3-gold/ion-3-gold-1000w-blackRead 15 October 2026Spec table: SKU FD-P-IA3G-100 for the black unit. The white 1000W page lists FD-P-IA3G-101.2Maker spec sheet (PDF)assets.fractal-design.com/files/uxzbxy2o/production/5ecdfe6471df7de72c0518c3db8b5d69f7b6e8aa.pdfRead 15 October 2026Additional information table: FD-P-IA3G-100 (Ion 3 Gold 1000W Black) and FD-P-IA3G-101 (Ion 3 Gold 1000W White).10Retailer pagescan.co.uk/products/1000w-fractal-design-ion-3-gold-power-supply-black-fully-modular-80plus-gold-single-rail-140mm-fan-aRead 15 October 2026Manufacturer code FD-P-IA3G-100.

Century II 1050W1Maker product pagemontechpc.com/century-ii-1050wRead 14 October 2026Specifications tab: Model Name Century II 1050W. The maker prints no part number.

GTIN / EAN

7340172710271, 843276110277, 7340172710288, 8432761102841Maker product pagefractal-design.com/products/power-supplies/ion-series/ion-3-gold/ion-3-gold-1000w-blackRead 15 October 2026Spec table: EAN 7340172710271 and UPC 843276110277 for the black unit. The white 1000W page lists EAN 7340172710288 and UPC 843276110284.2Maker spec sheet (PDF)assets.fractal-design.com/files/uxzbxy2o/production/5ecdfe6471df7de72c0518c3db8b5d69f7b6e8aa.pdfRead 15 October 2026Additional information table: EAN 7340172710271 and UPC 843276110277 for the black unit, EAN 7340172710288 and UPC 843276110284 for the white unit.

47105627433711Maker product pagemontechpc.com/century-ii-1050wRead 14 October 2026Specifications tab: EAN 4710562743371. A UK retailer's store data lists the same barcode for SKU CENTURY II 1050W.

AnnouncediThe maker's first announcement of this model. This is separate from first retail availability.

6 November 20259Press articleguru3d.com/story/fractal-ion-3-gold-power-supply-launches-in-1000w-850w-and-750w-modelsRead 15 October 2026Story published 2025-11-06 18:03.

15 April 20252Press articlefunkykit.com/news/montech-introduces-century-ii-power-supplyRead 14 October 2026Article dated 2025-04-15. It says the line is available on April 15, 2025 at 9 AM Eastern Time.

Status

Available1Maker product pagefractal-design.com/products/power-supplies/ion-series/ion-3-gold/ion-3-gold-1000w-blackRead 15 October 2026The page is live with a Find retailer button. Scan UK lists the black unit as in stock.10Retailer pagescan.co.uk/products/1000w-fractal-design-ion-3-gold-power-supply-black-fully-modular-80plus-gold-single-rail-140mm-fan-aRead 15 October 2026Scan UK lists the black 1000W unit with a next-day delivery estimate, so it is on sale.

Available7Retailer pagemaxmybuild.com/power-supplies/montech-century-ii-1050wRead 14 October 2026Listing shows $109.90 at Amazon and Newegg, both in stock, updated 14 Oct 2026. The Amazon US listing (ASIN B0F3XRMZBM) ranks #18 in Computer Power Supplies.

PredecessoriThe model this one directly replaced, in the same line, tier and size, as the maker or a trusted review names it.

Not available

Not available

SuccessoriThe model that directly replaced this one, in the same line, tier and size. A revision such as a Slim or OLED model does not count when a next generation exists.

Not available

Not available

Launch price (US)iThe maker's US launch MSRP for the stated configuration, excluding tax. Current store prices and later discounts do not qualify.

Not available

$109.92Press articlefunkykit.com/news/montech-introduces-century-ii-power-supplyRead 14 October 2026Century II 1050 W: US$ 109.9. The 850 W is US$ 89.9 and the 1200 W is US$ 129.9. US price, no sales tax. KitGuru and Tom's Hardware print about $110.5Reviewhwbusters.com/psus/montech-century-ii-1050w-atx-v3-1-psu-reviewRead 14 October 2026Technical specifications: MSRP (excluding VAT) $110. Tom's Hardware also prints $110. The stored value is the maker's launch price from the Funkykit report.

Launch price (EU)iThe maker's euro launch price for the stated configuration, including VAT as published. Current store prices and later discounts do not qualify.

Not available

Not available

MarketsiISO country or region codes where this exact model or variant is sold. A source page's language does not establish availability.

Not available

Not available

ColoursiThe maker's own colour names

Black, White1Maker product pagefractal-design.com/products/power-supplies/ion-series/ion-3-gold/ion-3-gold-1000w-blackRead 15 October 2026Spec table: Color Black. The white 1000W page lists White. Only the 1000W comes in white.2Maker spec sheet (PDF)assets.fractal-design.com/files/uxzbxy2o/production/5ecdfe6471df7de72c0518c3db8b5d69f7b6e8aa.pdfRead 15 October 2026Specifications: PSU color Black and White (white for the 1000W only).

Metallic Silver1Maker product pagemontechpc.com/century-ii-1050wRead 14 October 2026Overview text: a metallic silver finish. The maker names no other colour. Tom's Hardware describes a half black and half silver body.

Form factoriThe physical size standard that decides what fits in the case. An ATX unit is 150 × 86 mm at the back. An SFX unit is 125 × 63.5 mm.

ATX1Maker product pagefractal-design.com/products/power-supplies/ion-series/ion-3-gold/ion-3-gold-1000w-blackRead 15 October 2026Spec table: Form factor ATX.

ATX1Maker product pagemontechpc.com/century-ii-1050wRead 14 October 2026Specifications tab: Form Factor ATX (140).3Measurementcybenetics.com/evaluations/psus/2812Read 14 October 2026DUT Information: Type ATX12V. The maker lists form factor ATX (140).

ATX versioniThe ATX12V design guide revision the maker claims compliance with. A 16-pin GPU cable alone does not establish ATX 3.x. A Cybenetics report that withholds its ATX badge does not change the maker's claim. It goes in the source note.

ATX 3.11Maker product pagefractal-design.com/products/power-supplies/ion-series/ion-3-gold/ion-3-gold-1000w-blackRead 15 October 2026Spec table: PSU specification compliance ATX12V 3.1.2Maker spec sheet (PDF)assets.fractal-design.com/files/uxzbxy2o/production/5ecdfe6471df7de72c0518c3db8b5d69f7b6e8aa.pdfRead 15 October 2026

ATX 3.11Maker product pagemontechpc.com/century-ii-1050wRead 14 October 2026Overview: built to ATX 3.1 and PCIe 5.1 platforms. The 80 PLUS certificate type line reads ATX 3.0, ATX 3.1.

PCIe CEM versioniThe PCI Express card power revision the maker claims, as printed next to the ATX version. It sets the GPU power connector rules. It is not a slot speed. A reviewer's statement is not enough.

PCIe 5.16Reviewaphnetworks.com/reports/fractal-design-ion-3-gold-1000w/2Read 15 October 2026Rear panel description: 16-pin 600W 12V-2x6 PCIe 5.1 header. The summary page says ATX 3.1 and PCIe 5.1 compliant. Fractal's own pages say PCIe Gen 5 and name no 5.1 revision.

PCIe 5.11Maker product pagemontechpc.com/century-ii-1050wRead 14 October 2026Overview: built to ATX 3.1 and PCIe 5.1 platforms.

Modular cablesiFull means every cable detaches. Semi means some cables are fixed, usually the 24-pin and CPU cables.

Fully modular1Maker product pagefractal-design.com/products/power-supplies/ion-series/ion-3-gold/ion-3-gold-1000w-blackRead 15 October 2026Spec table: Modularity Fully modular.2Maker spec sheet (PDF)assets.fractal-design.com/files/uxzbxy2o/production/5ecdfe6471df7de72c0518c3db8b5d69f7b6e8aa.pdfRead 15 October 2026

Fully modular1Maker product pagemontechpc.com/century-ii-1050wRead 14 October 20263Measurementcybenetics.com/evaluations/psus/2812Read 14 October 2026DUT Information: Cable Design Fully Modular.

Built by (OEM)iThe company that designed and built the unit for the brand, such as CWT or FSP. As named by the maker, a teardown review or a Cybenetics report.

Seasonic3Owner's manualassets.fractal-design.com/files/uxzbxy2o/production/f4010608d07b27a63116df92afcb0f6424933d27.pdfRead 15 October 2026Regulatory block names the maker as Dongguan Seasonic Electronic Co., Ltd. KitGuru, APH Networks, CGMagazine and Club386 all call Seasonic the OEM.5Reviewkitguru.net/components/power-supplies/zardon/fractal-ion-3-gold-1000w-psu-reviewRead 15 October 2026Introduction: Fractal are working with Seasonic as the OEM for the new Ion 3 Gold series.6Reviewaphnetworks.com/reports/fractal-design-ion-3-gold-1000w/2Read 15 October 2026Page 3: Its OEM is Seasonic. Built on the same platform as the Seasonic FOCUS GX-1000 ATX 3.1 1000W.7Reviewcgmagonline.com/review/hardware/fractal-design-ion-3-gold-1000w-psuRead 15 October 2026Fractal designed the unit and Sea Sonic manufactures it.8Press articleclub386.com/fractal-ion-3-gold-psu-takes-elegance-seriously-even-though-you-may-never-see-itRead 15 October 2026According to their labels, these units are manufactured by Seasonic.

Shenzhen Xinweiye Technology (XWY)3Measurementcybenetics.com/evaluations/psus/2812Read 14 October 2026DUT Information: OEM/ODM Shenzhen Xinweiye Technology Co., Ltd. Tom's Hardware calls the company XWY.5Reviewhwbusters.com/psus/montech-century-ii-1050w-atx-v3-1-psu-reviewRead 14 October 2026Technical specifications: Manufacturer (OEM) Shenzhen Xinweiye Technology.6Reviewtomshardware.com/pc-components/power-supplies/montech-century-ii-gold-1050w-atx-3-1-power-supply-reviewRead 14 October 2026Internal Design: the OEM is XWY (Shenzhen Xin Weiye Technology Co.).

Power

5 of 9 differ

Rated continuous poweriThe continuous DC output the maker rates the unit for, such as 850. Peak or power excursion figures are not stored here.

1,000W1Maker product pagefractal-design.com/products/power-supplies/ion-series/ion-3-gold/ion-3-gold-1000w-blackRead 15 October 2026Spec table: Wattage 1000 W.

1,050W1Maker product pagemontechpc.com/century-ii-1050wRead 14 October 20263Measurementcybenetics.com/evaluations/psus/2812Read 14 October 2026Manufacturer-provided information: Rated Power 1050 W.

Full power rated up toiThe ambient temperature up to which the maker rates full continuous power, such as 50 °C. A review table that prints 0-50 °C with no maker source is not enough. An operating temperature range that does not say full power is not enough. A maker table with load steps gives the full-load row, such as 40 °C at full load next to 50 °C at 80 percent load. A temperature that a Cybenetics report marks as manufacturer-provided counts as a maker statement.

40°C2Maker spec sheet (PDF)assets.fractal-design.com/files/uxzbxy2o/production/5ecdfe6471df7de72c0518c3db8b5d69f7b6e8aa.pdfRead 15 October 2026Specifications: Maximum operating temperature 40°C at full load and 50°C at 80% load. The product page prints only 50 °C. The sheet is stored because it ties the 40°C figure to full load.

Not available

12V rail designiHow the maker splits +12V over-current protection. Switchable means the user picks single or multi rail with a switch or in software.

Single rail1Maker product pagefractal-design.com/products/power-supplies/ion-series/ion-3-gold/ion-3-gold-1000w-blackRead 15 October 2026Spec table: 12V rails 1.

Single rail3Measurementcybenetics.com/evaluations/psus/2812Read 14 October 2026Power Specifications: one +12V column with 87.5A and 1050W.5Reviewhwbusters.com/psus/montech-century-ii-1050w-atx-v3-1-psu-reviewRead 14 October 2026Technical specifications: Number of 12V rails 1.

+12V max currentiHighest combined current on +12V from the maker's power table. For a multi-rail unit this is the combined total, not one rail.

83A3Owner's manualassets.fractal-design.com/files/uxzbxy2o/production/f4010608d07b27a63116df92afcb0f6424933d27.pdfRead 15 October 20261000W Output Specification on page 16 of the booklet (page 9 of the PDF): +12V 83A.5Reviewkitguru.net/components/power-supplies/zardon/fractal-ion-3-gold-1000w-psu-reviewRead 15 October 2026External page: 83A on the +12V rail.6Reviewaphnetworks.com/reports/fractal-design-ion-3-gold-1000w/2Read 15 October 2026Page 2: +12V 83A, 996W.

87.5A1Maker product pagemontechpc.com/century-ii-1050wRead 14 October 2026DC Output table: +12V 87.5A, 1050W.3Measurementcybenetics.com/evaluations/psus/2812Read 14 October 2026

+12V max poweriHighest combined power on +12V from the maker's power table.

996W3Owner's manualassets.fractal-design.com/files/uxzbxy2o/production/f4010608d07b27a63116df92afcb0f6424933d27.pdfRead 15 October 20261000W Output Specification: +12V 996W.6Reviewaphnetworks.com/reports/fractal-design-ion-3-gold-1000w/2Read 15 October 2026Page 2: +12V 996W.

1,050W1Maker product pagemontechpc.com/century-ii-1050wRead 14 October 2026DC Output table: +12V 87.5A, 1050W.3Measurementcybenetics.com/evaluations/psus/2812Read 14 October 2026

+3.3V and +5V combined poweriThe combined limit for the +3.3V and +5V rails from the maker's power table. A table that prints the same figure under both rails, as be quiet! does, shows one shared limit, so the figure is stored once and not added.

125W3Owner's manualassets.fractal-design.com/files/uxzbxy2o/production/f4010608d07b27a63116df92afcb0f6424933d27.pdfRead 15 October 20261000W Output Specification: +3.3V 25A and +5V 25A with one 125W combined cell.5Reviewkitguru.net/components/power-supplies/zardon/fractal-ion-3-gold-1000w-psu-reviewRead 15 October 2026External page: 25A from each of the +3.3V and +5V rails.6Reviewaphnetworks.com/reports/fractal-design-ion-3-gold-1000w/2Read 15 October 2026Page 2: +3.3V 25A and +5V 25A, combined 125W.

100W1Maker product pagemontechpc.com/century-ii-1050wRead 14 October 2026DC Output table prints +3.3V 20A and +5V 20A with one 100W cell and a blank cell. The Cybenetics power table has one merged 100W cell for 3.3V and 5V, so 100W is the combined limit. Tom's Hardware prints 120W, which no other source confirms.3Measurementcybenetics.com/evaluations/psus/2812Read 14 October 2026

+5V standby currentiHighest current on the +5VSB standby rail. It powers USB charging and wake functions while the PC is off.

3A3Owner's manualassets.fractal-design.com/files/uxzbxy2o/production/f4010608d07b27a63116df92afcb0f6424933d27.pdfRead 15 October 20261000W Output Specification: +5VSB 3A, 15W.

3A1Maker product pagemontechpc.com/century-ii-1050wRead 14 October 2026DC Output table: +5VSB 3A, 15W.3Measurementcybenetics.com/evaluations/psus/2812Read 14 October 2026

AC input voltageiThe rated AC input range, such as 100 to 240 V.

Lowest100Highest240V1Maker product pagefractal-design.com/products/power-supplies/ion-series/ion-3-gold/ion-3-gold-1000w-blackRead 15 October 2026Spec table: Input voltage 100 - 240 V.2Maker spec sheet (PDF)assets.fractal-design.com/files/uxzbxy2o/production/5ecdfe6471df7de72c0518c3db8b5d69f7b6e8aa.pdfRead 15 October 20263Owner's manualassets.fractal-design.com/files/uxzbxy2o/production/f4010608d07b27a63116df92afcb0f6424933d27.pdfRead 15 October 20261000W Output Specification: AC input 100-240V AC, 13-6.5A, 50-60 Hz. The 200-240V AC 6.5A line is for Korea.

Lowest100Highest240V1Maker product pagemontechpc.com/century-ii-1050wRead 14 October 2026AC Input 100-240Vac 50-60Hz 15A-10A.3Measurementcybenetics.com/evaluations/psus/2812Read 14 October 2026Manufacturer-provided information: 100-240 Vrms, 10-15 A, 50-60 Hz.

Alternative low power mode (ALPM)iThe maker or a Cybenetics report states support for the ATX alternative low power mode used by Modern Standby.

Yes1Maker product pagefractal-design.com/products/power-supplies/ion-series/ion-3-gold/ion-3-gold-1000w-blackRead 15 October 2026Spec table: Modern sleep state compatibility Yes. The product sheet says C6 and C7 compatible.2Maker spec sheet (PDF)assets.fractal-design.com/files/uxzbxy2o/production/5ecdfe6471df7de72c0518c3db8b5d69f7b6e8aa.pdfRead 15 October 20266Reviewaphnetworks.com/reports/fractal-design-ion-3-gold-1000w/2Read 15 October 2026Page 4: the unit officially supports Alternative Sleep Mode with 100 to 150ms PG specifications.

Yes3Measurementcybenetics.com/evaluations/psus/2812Read 14 October 2026Temperature and Compliance Info: ALPM compatible, checked.

Certifications

4 of 5 differ

80 PLUS ratingiThe 80 PLUS level. When the 80 PLUS listing or certificate and the maker claim differ, store the listing level and put the claim and test voltage in the source note. When a model has several 80 PLUS entries, such as a newer test at a higher level, use the newest entry that matches the current maker documents.

80 PLUS Gold4Certification listclearesult.com/80plus/certified-psus/Fractal-Design/FD-P-IA3G-100-Ion-3-Gold-1000W-Black-115V-Internal-7437-2Read 15 October 202680 PLUS listing for FD-P-IA3G-100 (Ion 3 Gold 1000W Black), ID 7437.2, 115V internal, certificate rating Gold. The report PDF shows 91.64% at 50% load and a test date of 6/6/24. The listing page is for the black unit and the white unit shares the platform. The maker claims Gold for both.

80 PLUS Gold4Certification listclearesult.com/80plus/sites/80plus/files/manufacturer-certificate/MONTECH_CENTURY%20II%201050W_1050W_SOCE%207851_Report.pdfRead 14 October 202680 PLUS ID 7851, model CENTURY II 1050W, type ATX 3.0, ATX 3.1, 1050 W, 115V Internal, Gold, test date 2025-06-04. The certificate lists no sample serial. The maker's own page says Platinum, which is the Cybenetics level.

Cybenetics efficiency at 115ViThe Cybenetics ETA level from the 115V test. The Cybenetics report wins over the maker's claim.

Not available

Cybenetics Platinum3Measurementcybenetics.com/evaluations/psus/2812Read 14 October 2026Report 25PS2812A, certification ID 252812, issued May 13, 2025. The database name is Montech Century II Gold 1050 ATX3. The badge is ETA Platinum at 115V.

Cybenetics efficiency at 230ViThe Cybenetics ETA level from the 230V test. The 230V thresholds are higher, so the level can differ from the 115V level. The Cybenetics report wins over the maker's claim.

Not available

Cybenetics Platinum3Measurementcybenetics.com/evaluations/psus/2812Read 14 October 2026ETA Platinum at 230V.

Cybenetics noise at 115ViThe Cybenetics LAMBDA level from the 115V test. A++ is the quietest. The Cybenetics report wins over the maker's claim.

Not available

A-3Measurementcybenetics.com/evaluations/psus/2812Read 14 October 2026LAMBDA A- at 115V.

Cybenetics noise at 230ViThe Cybenetics LAMBDA level from the 230V test. The Cybenetics report wins over the maker's claim.

Not available

A-3Measurementcybenetics.com/evaluations/psus/2812Read 14 October 2026LAMBDA A- at 230V.

Measured

10 of 10 differ

Average efficiency at 115V (measured)iAverage efficiency over the whole load range at 115V input, from more than 1450 load combinations in the Cybenetics method. It is not the peak efficiency or the efficiency at 50% load.

Not available

90.064%3Measurementcybenetics.com/evaluations/psus/2812Read 14 October 2026Average over more than 1450 load combinations at 115V. Tested May 10, 2025, received Apr 29, 2025, ambient 28-32 C. The report lists no sample serial.

Average efficiency at 230V (measured)iThe same average efficiency at 230V input.

Not available

92.072%3Measurementcybenetics.com/evaluations/psus/2812Read 14 October 2026Average over more than 1450 load combinations at 230V.

Light-load efficiency at 115V (measured)iEfficiency at a 10 W load for units up to 500 W, or at a 2% load for larger units, at 115V input. This is the ATX light-load test.

Not available

73.26%3Measurementcybenetics.com/evaluations/psus/2812Read 14 October 2026Efficiency at 2% load (more than 500 W unit) at 115V.

Average power factor at 115V (measured)iAverage power factor over the whole load range at 115V input. 1 is the best possible value.

Not available

0.993Measurementcybenetics.com/evaluations/psus/2812Read 14 October 2026Average over more than 1450 load combinations at 115V. At 230V it is 0.958.

Average noise at 115V (measured)iAverage noise over the whole load range at 115V input in the Cybenetics method, at about 30 °C ambient. It is not the noise at full load.

Not available

28.5dB(A)3Measurementcybenetics.com/evaluations/psus/2812Read 14 October 2026Average over more than 1450 load combinations at 115V, ambient 28-32 C, Bruel and Kjaer 2270 G4 sound analyzer. The 230V average is 28.09 dBA.

Noise at full load at 115V (measured)iNoise at 100% load at 115V input in the Cybenetics typical load tests. That row often runs at about 45 °C intake. The intake temperature and the fan speed go in the source note. Lower is better.

Not available

44.6dB(A)3Measurementcybenetics.com/evaluations/psus/2812Read 14 October 2026Typical load tests at 115V, 100% load row: 44.6 dB(A) at 1894 rpm fan speed, ambient about 30 C. At 230V it is 44.5 dB(A) at 1888 rpm.

Standby power with no load at 115V (measured)iPower the unit draws from the wall with the PC off and nothing drawn from +5VSB, at 115V input.

Not available

0.0534W3Measurementcybenetics.com/evaluations/psus/2812Read 14 October 2026Standby power consumption at 115V with no load on +5VSB: 0.0534 W. At 230V it is 0.0998 W.

Hold-up time (measured)iHow long the outputs stay in regulation after AC power is lost, at maximum continuous load, as printed in the Cybenetics report. The report names no input voltage. The AC loss to PWR_OK time goes in the source note. Higher is better.

Not available

24.3ms3Measurementcybenetics.com/evaluations/psus/2812Read 14 October 2026Hold-Up Time and PWR_OK Signal: hold-up time 24.3 ms, AC loss to PWR_OK 21.2 ms, PWR_OK inactive to DC loss 3.1 ms, at maximum continuous load. The report names no input voltage.

12V ripple at full load (measured)iPeak-to-peak ripple on the +12V rail at full load and 115V input. Lower is better.

Not available

22.04mV3Measurementcybenetics.com/evaluations/psus/2812Read 14 October 2026Non-accredited. 12V ripple at full load at 115V. At 230V it is 23.57 mV.

12V load regulation (measured)iHow far the +12V voltage moves between light and full load at 115V input. Lower is better.

Not available

0.26%3Measurementcybenetics.com/evaluations/psus/2812Read 14 October 2026Non-accredited. 12V load regulation at 115V. At 230V it is 0.24%.

Cables and connectors

4 of 7 differ

CablesiOne row per kind of cable that runs from the PSU to a device. Connector is the plug at the device end. Count is the number of those plugs over all cables in the row. Length runs from the PSU end to the first plug. Adapters that plug into other cables are left out. Use 16-pin PCIe when the maker names a 16-pin GPU cable without saying 12V-2x6 or 12VHPWR. A cable from a 12V-2x6 socket on the PSU to 8-pin plugs is a cable, not an adapter, and counts as PCIe 8-pin. When the maker's documents name one GPU cable both 12VHPWR and 12V-2x6, use 16-pin PCIe and name both in the source note. Cables of one connector kind with different lengths or wire gauges get one row each.

AFractal Design Ion 3 Gold 1000W

Connector	Connectors	Cables	Length to first plug (mm)	Wire gauge	Rated power (W)
ATX 24-pin (20+4)	1	1	600	Not available	Not available
CPU 8-pin (EPS, 4+4)	2	2	700	Not available	Not available
PCIe 8-pin (6+2)	3	3	650	Not available	Not available
12V-2x6	1	1	700	16AWG	600
SATA power	8	2	400	Not available	Not available
SATA power	2	1	650	Not available	Not available
4-pin Molex	2	1	650	Not available	Not available

Source1Maker product pagefractal-design.com/products/power-supplies/ion-series/ion-3-gold/ion-3-gold-1000w-blackRead 15 October 2026Cables table: 1 ATX 24-pin 600 mm, 2 ATX 12V 4+4P 700 mm, 3 PCI-E 6+2-pin 650 mm, 1 PCI-E Gen5 12V-2x6 700 mm, 2 cables of 4x SATA (400+150+150+150 mm), 1 cable of 2x SATA (650+150 mm), 10 SATA connectors, 1 Peripheral (Molex) cable with 2 Molex connectors (650+150 mm). Lengths are to the first plug.2Maker spec sheet (PDF)assets.fractal-design.com/files/uxzbxy2o/production/5ecdfe6471df7de72c0518c3db8b5d69f7b6e8aa.pdfRead 15 October 2026Included modular cables table for the 1000W: 1 ATX 24-pin 600 mm, 2 ATX 12V 4+4P 700 mm, 3 PCI-E 6+2 pin 650 mm, 1 PCI-E Gen5 12V-2x6 700 mm, 2 cables of 4x SATA 400+150+150+150 mm, 1 cable of 2x SATA 650+150 mm, 10 SATA connectors, 1 cable of 2x Peripheral (Molex) 650+150 mm.5Reviewkitguru.net/components/power-supplies/zardon/fractal-ion-3-gold-1000w-psu-reviewRead 15 October 2026Introduction and bundle pages: the 12V-2x6 cable is rated 600W, there are 10 SATA connectors and no in-cable capacitors. The page says primary cables are 16-20 AWG and APH Networks says 18 AWG, so gauges are stored only for the 12V-2x6 cable.6Reviewaphnetworks.com/reports/fractal-design-ion-3-gold-1000w/2Read 15 October 2026Page 2: 16 AWG wires on the 12V-2x6 bundle only, everything else 18 AWG. The 12V-2x6 header is 16-pin 600W. Only the 12V-2x6 gauge is stored because KitGuru gives a 16-20 AWG range for the other cables. The APH list of SATA cables disagrees with the maker, so the maker table is used.

BMontech Century II 1050W

Connector	Connectors	Cables	Length to first plug (mm)	Wire gauge	Rated power (W)
ATX 24-pin (20+4)	1	1	600	18AWG	Not available
CPU 8-pin (EPS, 4+4)	2	2	700	18AWG	Not available
PCIe 8-pin (6+2)	6	3	600	18AWG	Not available
12V-2x6	1	1	600	16AWG	600
SATA power	12	3	500	18AWG	Not available
4-pin Molex	4	1	500	18AWG	Not available

Source1Maker product pagemontechpc.com/century-ii-1050wRead 14 October 2026Cables table: 1 motherboard cable with a 20+4 pin plug, 2 CPU cables with one 4+4 pin plug, 3 PCIe cables with two 6+2 pin plugs, 1 12V-2x6 cable, 3 SATA cables with 4 plugs and 1 Molex cable with 4 plugs. Lengths and gauge come from the Cybenetics report.3Measurementcybenetics.com/evaluations/psus/2812Read 14 October 2026Cables and Connectors table: ATX 20+4 pin 600 mm 18AWG, 2 x 4+4 pin EPS 700 mm 18AWG, 3 PCIe cables with 6+2 pin plugs, 600 mm then 150 mm, 6 plugs in total, 18AWG, 12+4 pin PCIe 600 mm (600W) 16-26AWG, 3 SATA cables of 500 mm plus 3 x 150 mm spacing with 12 plugs in total, 18AWG, 1 Molex cable 500 mm plus 3 x 150 mm with 4 plugs, 18AWG. The 16-26AWG range of the 12V-2x6 cable includes the thin sideband wires, so the stored gauge is the 16AWG power wire.

CPU (EPS) connectorsi8-pin or 4+4-pin CPU power plugs.

2=CalculatedFrom Cables

2=CalculatedFrom Cables

PCIe 8-pin connectorsi8-pin or 6+2-pin GPU power plugs. Counts the plugs in the box. Some cables share one PSU socket, which the source note says.

3=CalculatedFrom Cables

6=CalculatedFrom Cables

16-pin GPU connectorsiNative 16-pin GPU power plugs: 12V-2x6, 12VHPWR and 16-pin cables of unstated revision. Adapters are not counted. Counts the plugs in the box. Some cables share one PSU socket, which the source note says.

1=CalculatedFrom Cables

1=CalculatedFrom Cables

SATA power connectors

10=CalculatedFrom Cables

12=CalculatedFrom Cables

4-pin Molex connectors

2=CalculatedFrom Cables

4=CalculatedFrom Cables

Cable styleiHow the modular cables are made. Mixed means some cables are sleeved and others flat, such as a sleeved 24-pin cable with flat other cables. From the maker page or a review photo page.

Flat2Maker spec sheet (PDF)assets.fractal-design.com/files/uxzbxy2o/production/5ecdfe6471df7de72c0518c3db8b5d69f7b6e8aa.pdfRead 15 October 2026Specifications: DC cable type UltraFlex, flat cables.7Reviewcgmagonline.com/review/hardware/fractal-design-ion-3-gold-1000w-psuRead 15 October 2026The modular cables are UltraFlex and flat-profiled. APH Networks calls the wires separate and KitGuru says sleeved, so the maker's flat cable type is stored.

Flat1Maker product pagemontechpc.com/century-ii-1050wRead 14 October 2026Overview: flat cables and a fully modular design.5Reviewhwbusters.com/psus/montech-century-ii-1050w-atx-v3-1-psu-reviewRead 14 October 2026Cables page: all cables are flat and consist of black gauges. Review published May 31, 2025.

Fan

1 of 4 differ

Fan sizeiFrame size of the cooling fan, such as 120, 135 or 140.

140mm2Maker spec sheet (PDF)assets.fractal-design.com/files/uxzbxy2o/production/5ecdfe6471df7de72c0518c3db8b5d69f7b6e8aa.pdfRead 15 October 2026Overview and key features: 140 mm Momentum fan.5Reviewkitguru.net/components/power-supplies/zardon/fractal-ion-3-gold-1000w-psu-reviewRead 15 October 2026Internal page: 140mm fan, Momentum 14 Power Supply Edition, 12V 0.24A, maximum 2,000 rpm.

135mm1Maker product pagemontechpc.com/century-ii-1050wRead 14 October 2026Specifications tab: Fan Size 135mm.3Measurementcybenetics.com/evaluations/psus/2812Read 14 October 2026DUT Information: 135mm Fluid Dynamic Bearing Fan.

Fan bearingiUse the maker's bearing name. FDB and S-FDB are fluid dynamic. HDB is hydrodynamic. Noctua SSO and SSO2 are SSO. Corsair Magnetic Dome is magnetic dome. A brand bearing name that fits no option is Other.

Fluid dynamic (FDB)2Maker spec sheet (PDF)assets.fractal-design.com/files/uxzbxy2o/production/5ecdfe6471df7de72c0518c3db8b5d69f7b6e8aa.pdfRead 15 October 2026Specifications: Momentum 14 series fan, with Fluid Dynamic Bearing.5Reviewkitguru.net/components/power-supplies/zardon/fractal-ion-3-gold-1000w-psu-reviewRead 15 October 2026Internal page: high-grade fluid dynamic bearing fan.

Fluid dynamic (FDB)1Maker product pagemontechpc.com/century-ii-1050wRead 14 October 2026Specifications tab: Bearing FDB.3Measurementcybenetics.com/evaluations/psus/2812Read 14 October 2026DUT Information: 135mm Fluid Dynamic Bearing Fan (HA13525H12F-Z).

Fan modeiSemi-passive means the fan stops at low load, often sold as zero RPM, hybrid or 0 dB mode. Fanless means the unit has no fan.

Semi-passive1Maker product pagefractal-design.com/products/power-supplies/ion-series/ion-3-gold/ion-3-gold-1000w-blackRead 15 October 2026Spec table: Semi-passive operation Yes.2Maker spec sheet (PDF)assets.fractal-design.com/files/uxzbxy2o/production/5ecdfe6471df7de72c0518c3db8b5d69f7b6e8aa.pdfRead 15 October 2026Specifications: Semi-passive operation Yes, user selectable (Zero RPM mode).5Reviewkitguru.net/components/power-supplies/zardon/fractal-ion-3-gold-1000w-psu-reviewRead 15 October 2026Zero RPM semi-passive mode keeps the fan off until about 30% load.

Semi-passive1Maker product pagemontechpc.com/century-ii-1050wRead 14 October 2026Overview: 135mm FDB fan with Smart Zero Fan mode.3Measurementcybenetics.com/evaluations/psus/2812Read 14 October 2026DUT Information: Semi-Passive Operation checked (selectable). The 10% load row shows 0 rpm at 115V.

Fan mode switchiA button, switch or software setting lets the user turn the semi-passive mode off so the fan always spins. A unit without a semi-passive mode, whose fan the maker says always spins, has no switch, so it is false.

Yes2Maker spec sheet (PDF)assets.fractal-design.com/files/uxzbxy2o/production/5ecdfe6471df7de72c0518c3db8b5d69f7b6e8aa.pdfRead 15 October 2026Specifications: user selectable Zero RPM mode. APH Networks describes a toggle button on the rear panel.6Reviewaphnetworks.com/reports/fractal-design-ion-3-gold-1000w/2Read 15 October 2026Page 2: a semi-fanless mode toggle button sits on the rear panel next to the power switch.

Yes3Measurementcybenetics.com/evaluations/psus/2812Read 14 October 2026DUT Information: Semi-Passive Operation marked selectable.5Reviewhwbusters.com/psus/montech-century-ii-1050w-atx-v3-1-psu-reviewRead 14 October 2026Product photos page: on the front, besides the power switch, a smaller switch enables or disables the fan's semi-passive operation.6Reviewtomshardware.com/pc-components/power-supplies/montech-century-ii-gold-1050w-atx-3-1-power-supply-reviewRead 14 October 2026External Appearance: the front has a button to toggle the hybrid fan mode.

Protection and parts

2 of 3 differ

ProtectionsiProtections the maker lists, or a retailer spec table copies from the maker, plus protections the Cybenetics protection tests show working (UVP, NLO, SIP). The Cybenetics manufacturer list has no OVP or UVP row, so do not build the list from it alone. A protection that is not listed may still exist. No-load covers no-load operation and no-load protection. Fan failure is a maker's fan failure protection or fan safeguard, also when the Cybenetics manufacturer block lists it.

Over-current (OCP), Over-voltage (OVP), Under-voltage (UVP), Over-power (OPP), Over-temperature (OTP), Short-circuit (SCP)1Maker product pagefractal-design.com/products/power-supplies/ion-series/ion-3-gold/ion-3-gold-1000w-blackRead 15 October 2026Spec table lists OPP, OVP, UVP, SCP, OCP and OTP.2Maker spec sheet (PDF)assets.fractal-design.com/files/uxzbxy2o/production/5ecdfe6471df7de72c0518c3db8b5d69f7b6e8aa.pdfRead 15 October 2026

Over-current (OCP), Over-voltage (OVP), Under-voltage (UVP), Over-power (OPP), Over-temperature (OTP), Short-circuit (SCP), No-load (NLO), Surge and inrush (SIP)1Maker product pagemontechpc.com/century-ii-1050wRead 14 October 2026Specifications tab: OPP / OVP / UVP / SCP / OCP / OTP.3Measurementcybenetics.com/evaluations/psus/2812Read 14 October 2026Protection Features (Manufacturer) lists OPP, +12V OCP, OTP, SCP, surge and inrush current protection. Protection tests tick UVP at 90 V and 80 V and NLO, and SIP shows an MOV for surge and an NTC with bypass relay for inrush. The maker lists OVP, which the report does not test.

All-Japanese capacitorsiThe maker states that every electrolytic capacitor is from a Japanese maker. A Japanese bulk capacitor alone is not enough. A spec row such as "Japanese capacitors" that names no exception counts.

Yes1Maker product pagefractal-design.com/products/power-supplies/ion-series/ion-3-gold/ion-3-gold-1000w-blackRead 15 October 2026Spec table: Capacitors 105°C Japanese capacitors. Stated for the capacitors in general, with no exception named. APH Networks says 100% Japanese brand capacitors.2Maker spec sheet (PDF)assets.fractal-design.com/files/uxzbxy2o/production/5ecdfe6471df7de72c0518c3db8b5d69f7b6e8aa.pdfRead 15 October 2026

Yes1Maker product pagemontechpc.com/century-ii-1050wRead 14 October 2026Overview: 100% Japanese capacitors.6Reviewtomshardware.com/pc-components/power-supplies/montech-century-ii-gold-1050w-atx-3-1-power-supply-reviewRead 14 October 2026Internal Design: capacitors are a mix of Nippon Chemi-Con, Rubycon and Toshin Kogyo, all Japanese makers.

MTBF (claimed)iThe maker's mean time between failures, such as 100000. An MTTF figure for the whole unit counts too. An MTTF for the fan alone does not. The test temperature goes in the source note.

100,000h1Maker product pagefractal-design.com/products/power-supplies/ion-series/ion-3-gold/ion-3-gold-1000w-blackRead 15 October 2026Spec table: MTBF 100000 h. The product sheet adds 25°C ambient.2Maker spec sheet (PDF)assets.fractal-design.com/files/uxzbxy2o/production/5ecdfe6471df7de72c0518c3db8b5d69f7b6e8aa.pdfRead 15 October 2026Specifications: Life expectancy (MTBF) 100 000 h (25°C ambient temperature). The manual states at least 90 000 hours at maximum output load. The two figures are for different conditions, and the sheet figure is stored.

Not available

Monitoring and lighting

0 of 4 differ

Software monitoringiThe unit reports power, temperature or fan data to PC software over a USB or internal connection.

Not available

Not available

SoftwareiThe maker's software for monitoring or control.

Not available

Not available

Built-in power displayiA screen on the unit that shows live power draw or other readings.

Not available

Not available

RGB lighting

No8Press articleclub386.com/fractal-ion-3-gold-psu-takes-elegance-seriously-even-though-you-may-never-see-itRead 15 October 2026Matte finish free of flashy branding and RGB lighting.

No7Retailer pagemaxmybuild.com/power-supplies/montech-century-ii-1050wRead 14 October 2026Listing specs: no RGB. Tom's Hardware, Hardware Busters and the maker page describe no lighting.

Dimensions and weight

2 of 2 differ

DimensionsiBody without cables. Width and height are the back face with the AC inlet. Depth is the length into the case, which decides case fit.

Width150Height86Depth150mm(5.9 × 3.4 × 5.9 in)1Maker product pagefractal-design.com/products/power-supplies/ion-series/ion-3-gold/ion-3-gold-1000w-blackRead 15 October 2026Spec table: Product dimensions (L x W x H) 150 x 150 x 86 mm. The manual shows 150 mm by 86 mm for the back face, so depth is 150, width 150 and height 86.2Maker spec sheet (PDF)assets.fractal-design.com/files/uxzbxy2o/production/5ecdfe6471df7de72c0518c3db8b5d69f7b6e8aa.pdfRead 15 October 20263Owner's manualassets.fractal-design.com/files/uxzbxy2o/production/f4010608d07b27a63116df92afcb0f6424933d27.pdfRead 15 October 2026Cover and general pages show 150 mm and 86 mm for the back face.

Width150Height86Depth140mm(5.9 × 3.4 × 5.5 in)1Maker product pagemontechpc.com/century-ii-1050wRead 14 October 2026Specifications tab: Dimensions (L*W*H) 140*150*86mm, so depth 140, width 150, height 86. The page also prints Operating Temperature 0-40 C, which is not stored. Tom's Hardware prints its power table as Rated @ 50 C and Hardware Busters prints 0-50 C.

WeightiWeight of the unit alone. Use the Hardware Busters figure on hwbusters.com when the maker states none, not a copy on another site. Maker weights that include cables or the box, such as Corsair's, and retailer packed weights are not stored. A net weight counts unless the maker says it includes the cables.

1.8kg(4 lb)1Maker product pagefractal-design.com/products/power-supplies/ion-series/ion-3-gold/ion-3-gold-1000w-blackRead 15 October 2026Spec table: Net weight 1.8 kg, gross weight 3.3 kg. KitGuru also gives 1.8 kg for the unit. Whether the net weight includes the modular cables is not stated.5Reviewkitguru.net/components/power-supplies/zardon/fractal-ion-3-gold-1000w-psu-reviewRead 15 October 2026External page: the unit measures 150 x 150 x 86 mm and weighs 1.8kg. The sample was the white unit.

1.49kg(3.3 lb)5Reviewhwbusters.com/psus/montech-century-ii-1050w-atx-v3-1-psu-reviewRead 14 October 2026Technical specifications: 1.49 kg (3.28 lb). The review does not say whether cables are included. Montech does not publish a weight. Best Buy's 104 oz and a Cyprus retailer's 3.9 kg are packed weights and are not stored.

In the box

1 of 1 differ

In the boxiItems supplied with this exact model, verbatim. The AC power cord differs per region.

Power supply, Modular cable kit, User guide, AC Power Cord (localized), 4x Mounting screws, cable ties and PSU tester2Maker spec sheet (PDF)assets.fractal-design.com/files/uxzbxy2o/production/5ecdfe6471df7de72c0518c3db8b5d69f7b6e8aa.pdfRead 15 October 2026Package contents: power supply unit, modular cables, accessory kit, user manual, regional power cord. The manual lists the accessory kit contents and is the stored wording.3Owner's manualassets.fractal-design.com/files/uxzbxy2o/production/f4010608d07b27a63116df92afcb0f6424933d27.pdfRead 15 October 2026Package Contents page, English: Power supply, Modular cable kit, User guide (this booklet), AC Power Cord (localized), 4x Mounting screws, cable ties and PSU tester.

AC power cable, Mounting screws, Cable ties, Cable straps6Reviewtomshardware.com/pc-components/power-supplies/montech-century-ii-gold-1050w-atx-3-1-power-supply-reviewRead 14 October 2026In the Box: mounting screws, an AC power cable, a few cable ties and several cable straps. The review was published on 3 May 2025.

Links

Not compared

Product page

www.fractal-design.com/products/power-supplies/ion-series/ion-3-gold/ion-3-gold-1000w-black1Maker product pagefractal-design.com/products/power-supplies/ion-series/ion-3-gold/ion-3-gold-1000w-blackRead 15 October 2026

www.montechpc.com/century-ii-1050w1Maker product pagemontechpc.com/century-ii-1050wRead 14 October 2026

Spec sheet

assets.fractal-design.com/files/uxzbxy2o/production/5ecdfe6471df7de72c0518c3db8b5d69f7b6e8aa.pdf2Maker spec sheet (PDF)assets.fractal-design.com/files/uxzbxy2o/production/5ecdfe6471df7de72c0518c3db8b5d69f7b6e8aa.pdfRead 15 October 2026

Not available

Manual

assets.fractal-design.com/files/uxzbxy2o/production/f4010608d07b27a63116df92afcb0f6424933d27.pdf3Owner's manualassets.fractal-design.com/files/uxzbxy2o/production/f4010608d07b27a63116df92afcb0f6424933d27.pdfRead 15 October 2026

Not available

EPREL registration numberiId in the EU energy label database. Each size or model of a series has its own id, so it is per variant.

Not available

Not available

Warranty

0 of 1 differ

Manufacturer warranty (source market)iThe maker's warranty period for the exact SKU or configuration and market named in the source note. It applies only to that stated market, not every regional variant. Statutory consumer rights are excluded. The base term is stored. An extension that needs registration goes in the source note.

10years1Maker product pagefractal-design.com/products/power-supplies/ion-series/ion-3-gold/ion-3-gold-1000w-blackRead 15 October 2026Spec table: Warranty period 10 years. The page is Fractal's global page and names no market.2Maker spec sheet (PDF)assets.fractal-design.com/files/uxzbxy2o/production/5ecdfe6471df7de72c0518c3db8b5d69f7b6e8aa.pdfRead 15 October 2026

10years1Maker product pagemontechpc.com/century-ii-1050wRead 14 October 2026Specifications tab: Warranty 10 Years. The page is the global maker page and names no market.

Both are also in the API. Back to all power supplies.