Highly regarded power supply by the internet
Super Flower Leadex VII XG 1300W 80+ Gold White, Cybenetics Platinum, Full Modular, ATX 3.1 & PCIe 5.1, 12VHPWR Cable (2x8pin-16pin Native Cables), Power Supply, FDB Fan, SF-1300F14XG, White
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Amazon [amazon.com]
Super Flower Leadex VII XG 1300W 80+ Gold, Cybenetics Platinum, Full Modular, ATX 3.1 & PCIe 5.1, W/12VHPWR Cable (2x8pin - 16pin native cables) , Power Supply, FDB Fan, SF-1300F14XG, Black version
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Newegg [newegg.com]
Super Flower is a legendary Original Equipment Manufacturer (OEM). They design and manufacture their platforms entirely in-house and are famous for being the engineering team behind EVGA's ultra-reliable G2, P2, and T2 series power supplies.
Lab-Verified Efficiency: While the box says "80 PLUS Gold," independent testing by Cybenetics rates the Leadex VII XG 1300W as Cybenetics Platinum (averaging 92.3% efficiency at 115V).
Internal Topography: The unit utilizes a Double-Sided PCB with a Full-Bridge LLC Resonant Converter and DC-to-DC topology.
Capacitor Quality: It uses 100% Japanese 105°C-rated capacitors (primarily Rubycon and Nippon Chemi-Con) on both the main board and the modular backpanel, guaranteeing extreme thermal endurance.
Transient Response (ATX 3.1): It is ATX 3.0/3.1 and PCIe 5.0/5.1 compliant. The high-end Infineon MOSFETs allow the unit to easily absorb microsecond power excursions of up to 2600W (200% of its rated capacity) without triggering Over Current Protection (OCP).
Voltage Regulation & Ripple: Cybenetics lab reports show world-class 12V ripple suppression. Even when pushed to a blistering 1300W maximum load, the 12V rail ripple stays under 18.2mV (the ATX failure limit is 120mV). This provides incredibly clean power, which extends the lifespan of motherboards and NVMe SSDs.
Warranty
10-Year Manufacturer Warranty: Super Flower guarantees the unit for a full decade. While their RMA centers were historically overseas, they have recently expanded their US-based support network for faster turnarounds, directly answering user queries on Reddit threads to assist with RMAs.
Pros:
- The 12V-2x6 Cable Design: This is the most praised feature on Reddit. Unlike other ATX 3.1 power supplies, the Super Flower does not put a 16-pin header on the power supply itself. Instead, the included GPU cable uses two standard, ultra-secure 8-pin PCIe connectors at the PSU side that merge into the 16-pin GPU connector. This completely eliminates the risk of cables melting at the power supply housing.
- "Set and Forget" Reliability: It is consistently ranked in "Tier A" on the Cultists Network PSU Tier List. Users report zero coil whine and bulletproof stability.
- Compact Footprint: At only 150mm long, it is remarkably small for a 1300W unit, leaving plenty of room for cable management in mid-tower cases.
Cons:
- Aggressive High-Load Fan Curve: Reviewers at Hardware Busters and users on r/pcmasterrace note that the 140mm Fluid Dynamic Bearing (FDB) fan is dead silent up to about 70% load. However, if pushed past 1000W, the fan curve is extremely aggressive and becomes loud to protect the internal components.
- No Digital Telemetry: Unlike Corsair's "i" series, this is an analog unit. You cannot plug it into a motherboard USB header to pull live wattage data into Home Assistant.
-Minor Rail Transients: The 5VSB (standby) rail regulation is slightly looser than competitors, though this has zero impact on heavy compute or GPU stability.
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