The Super Flower Leadex III 1300W is a strong ATX v3.1 compliant PSU, capable of supporting the current and next generation GPUs. With the NVIDIA RTX 5000 and the new AMD RX 8000 around the corner, it is time to think about your power needs!
The Super Flower Leadex III 1300W is (or will be) included in my best ATX v3.x & PCIe 5.x PSU picks article.
Super Flower continues to have a strong presence in the PSU market, mainly selling under its name and not as an OEM (aka making products for other brands). In today’s review, I will look at the Leadex III 1300W, which offers a high watt-per-dollar ratio thanks to its increased max power and the very good price, which at the time of the review was set at $160. With this amount, you get a Cybenetics Platinum certified PSU, able to handle up to 2600W power spikes. Hence, you won’t face any issues even if you pair it with an NVIDIA RTX 5090 (once it becomes available and, of course, given that you have the money to buy it).
High-capacity ATX v3.1 PSU Reviews:
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- Cooler Master GX III 1250W ATX v3.0 PSU Review
- MSI MAG A1250GL PCIE5 ATX v3.1 PSU Review
- Seasonic Prime TX-1300 ATX v3.0 PSU Review
- XPG Cybercore II 1300 Platinum PSU Review
- Cooler Master X Silent MAX Platinum 1300W: The Power Of Silence!
- Thermaltake Toughpower GF3 1350W ATX v3.0 PSU Review
- NZXT C1500 ATX v3.1 PSU Review
- Super Flower Leadex Titanium ATX v3.0 1600W PSU Review
- be quiet! Dark Power Pro 13 1600W PSU Review
- XPG Fusion 1600W Titanium PSU Review – Should Corsair Worry?
- Seasonic Prime PX-1600 ATX v3.0 PSU Review
- Seasonic Prime TX-1600 ATX v3.0 PSU Review
- Thermaltake Toughpower GF3 1650W ATX v3.0 PSU Review
- darkFlash UPMOST 1250W ATX v3.0 PSU Review
- Manufacturer (OEM): Super Flower
- Max Power: 1300W
- Cybenetics Efficiency: [115V] Cybenetics Platinum (89-91%), [230V] Cybenetics Gold (89-91%)
- Noise: Cybenetics Standard++ (30-35 dB[A])
- Compliance: ATX v3.1, EPS 2.92
- Operating Temperature (Continuous Full Load): 0 – 50 °C
- Alternative Low Power Mode support: Yes
- Power 12V combined: 1299.6W
- Number of 12V rails: 1
- Power 5V + 3.3v: 100W
- Power 5VSB: 15W
- Cooling: 140mm Fluid Dynamic Bearing Fan (ZFF142512D)
- Semi-Passive Operation: ✓ (Selectable)
- Modular Design: Yes (Fully)
- High Power Connectors: 2x EPS (2x cables), 4x PCIe 6+2 pin (4x cables), 1x PCIe 12+4 pin (600W)
- Peripheral Connectors: 8x SATA (2x cables), 4x 4-pin Molex (1x cable)
- ATX Cable Length: 595mm
- EPS Cable Length: 700mm
- 12+4 pin PCIe Cable Length: 700mm
- 6+2 pin PCIe Cable Length: 700mm
- Distance between SATA / 4-pin Molex: 130/150mm
- In-cable capacitors: No
- Dimensions (W x H x D): 150 mm x 85 mm x 150mm
- Weight: 1.55 kg (3.42 lb)
- Warranty: 10-years
- Street Price (excluding VAT): $160 (at the time of the review)
Power Specifications
| Rail | 3.3V | 5V | 12V | 5VSB | -12V | |
| Max. Power | Amps | 20 | 20 | 100 | 3 | 0.5 |
| Watts | 100 | 1299.6 | 15 | 6 | ||
| Total Max. Power (W) | 1300 | |||||
What differences Leadex III and Leadex VII series have?
different platform
Do you think the 1000w version of this PSU is good? There’s no reviews on it
Should I buy Super Flower Leadex III 1300W ATX v3.1 or Cooler Master MWE gold v2 1250w to be on safe site about 2vsb rail?
SF told me that they will fix the 5VSB OCP.
thank you for replying! what about NZXT c1000 atx3.1 or Corsair RM1000e? NZXT c1000 atx3.1 is just few dollars more at my country
I got this PSU but I think mine is dead. Tried doing a BIOS flashback with just the motherboard and cpu power plugged in and nothing happened (yes the psu was switched on). I then did the paperclip test and the fan didnt spin but im not sure if it normally spins at startup. Does anyone know? I tried both with ECO on and ECO off.
with ECO off the PSU’s fan should start.
Thanks for your review. Any thoughts on what you’d pick between the 1000W version of this and the new (ATX 3.1) RM1000x that you reviewed in September?
I am also looking at the Leadex VII XP Platinum that you recommend in your guide. But I think this review is the first time anyone has looked at one of the new ATX 3.1 Leadex III models.
The difference in Wattage us huge between these two, 300W. If you need more power, the Leadex III.
Aris do you have any info for Asrock PSU ?
Yes. FSP and HEC OEMs.