Super Flower Leadex VII XP 1200W ATX v3.0 PSU Review

The Super Flower Leadex VII XP 1200W is an ATX v3.0 PSU, which meets all requirements of the ATX v3.1 spec (and even more), so Super Flower could easily just change the logo and advertise it more efficiently.

The Super Flower Leadex VII XP 1200W is included in my best ATX v3.x & PCIe 5.x PSU picks article.

The Leadex VII XP 1200W has Platinum efficiency in the Cybenetics scheme and a Cybenetics Standard+ (35-40 dB[A]) noise rating. The unit’s dimensions are compact, with a depth of 150mm, which is low for its 1200W max power. Moreover, SF used an FDB fan to ensure the PSU would outlast the ten-year warranty. This is a top-performance power supply, as you will find out throughout this review, currently sold at a price notably lower than its direct competitors.


Technical Specifications:
  • Manufacturer (OEM): Super Flower
  • Max Power: 1200W
  • Cybenetics Efficiency: [115V] Cybenetics Platinum (89-91%)
  • 80 Plus Efficiency: Platinum
  • Noise [115V]: Cybenetics Standard+ (35-40 dB[A])
  • Compliance: ATX v3.x, EPS 2.92
  • Operating Temperature (Continuous Full Load): 0 – 50 °C
  • Alternative Low Power Mode support: Yes
  • Power 12V combined: 1198.8W
  • Number of 12V rails: 1
  • Power 5V + 3.3v: 100W
  • Power 5VSB: 15W
  • Cooling: 140mm Fluid Dynamic Bearing Fan (ZFF142512D)
  • Semi-Passive Operation: ✓
  • Modular Design: Yes (Fully)
  • High Power Connectors: 2x EPS (2x cables), 4x PCIe 6+2 pin (4x cables), 1x PCIe 12+2 pin (600W)
  • Peripheral Connectors: 12x SATA (3x cables), 4x 4-pin Molex (single cable)
  • ATX Cable Length: 600mm
  • EPS Cable Length: 700mm
  • 6+2 pin PCIe Cable Length: 700mm
  • 12+4 pin PCIe Cable Length: 700mm
  • Distance between SATA\4-pin Molex: 120\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: ten years
  • Street price (excluding VAT): $220 (promo price for pre-order)

Power Specifications

Rail 3.3V 5V 12V 5VSB -12V
Max. Power Amps 20 20 99.9 3 0.5
Watts 100 1198.8 15 6
Total Max. Power (W) 1200
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9 thoughts on “Super Flower Leadex VII XP 1200W ATX v3.0 PSU Review

  1. Are you sure you reviewed the XP model here and not the XG ? because the photos on your site and the photos on the manufacturer’s site don’t match up ,on the manufacturer’s site XP model has different connector plugs on the psu side.

      1. Hi Aris,

        i am still a little bit confused. On their website Super Flower lists a XG (Super Flower Leadex VII XG) and a XP (Super Flower Leadex VII Platinum Pro) series, both Cybenetics Platinum certified.

        Your Cybenetics measurements for both series are almost identical. Except for different cable lengths, is there any difference between those psu’s? Or is this only a relabeling because of your cybenetics rating? In germany the XP and XG 1000w models cost almost the same. Assuming the price stays the same, which series would you recommend?

        Thanks 🙂

        1. Hi! We don’t do re-labeling, we have to check everything.

          SF followed/thought according to the 80 P scheme. They will start thinking according to Cyben’s schemes from now on. If they cost the same, XP.

          1. At the same prices, which is better and do you recommend buying seasonic Vertex platinum px 1200 or leadex vii 1200 platinum or leadex vii 1300 gold ?
            thank you.

  2. Hello,

    I was wondering if this PSU is really atx 3.1 specification? If the connection is loose, will it short out and do the 0 watt/protection feature? Does it also have “Permitted on the 12V rail up to 13.75A for 0.1ms (165W), allowing for higher power draw from PCIe devices”?

    I understand this is a really good PSU, but at the same time the 3.1 spec is confusing.


    1. Hi! It is ATX v3.1 since Intel doesn’t require 12V-2×6, but it says it is mandatory only on the GPU.
      It can deliver 200% of its power for 0.1ms.

      It can be confusing indeed!

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