Seasonic S12II 520 Watts PSU

    Seasonic S12II 520 Watts PSU

    103 Ratings & 40 Reviews
    Seal of Quality & Speed
    • 6 Quality ChecksYou get exactly what you ordered
    • Fast & Free ShippingLakhs of products delivered within 2-4 days & Free Delivery*
    *on all orders above ₹500
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    • Power Output: 520 W
    • 1 12V Power Rails
    • Number of Fans: 1
    • Customers can get RMA support by sending email to with their purchase details. After verification that the product is sold by Tirupati, they will receive instructions on how to return the defective product They can also get in touch with any of our branch offices across india for rma support with the proof of purchase.

      All Manufacturing Defects

    • 10 Days Replacement Policy
      ValidityCoversType Accepted
      10 days from delivery or installation*Damaged, Defective, Item not as describedReplacement

      *The validity for products installed only by Flipkart authorized personnel shall be 10 days from installation.

      If you have received a damaged or defective product or if it is not as described, you can raise a replacement request on the Website/App/Mobile site within 10 days of receiving the product.

      We will help you troubleshoot any issues you may have, either through online tools, over the phone, and/or through an in-person technical visit. Only one (1) replacement will be provided in the unlikely event that the product is defective. If no defect is confirmed, the issue is not diagnosed within 10 days of delivery, a troubleshooting step cannot be performed, or if one replacement has already been provided, you will be directed to a brand service centre to resolve any subsequent issues.

      Successful pick-up of the product is subject to the following conditions being met:

      • Correct and complete product (with the original brand/product Id/undetached MRP tag/product's original packaging/freebies and accessories).
      • The product should be in unused, undamaged and original condition without any scratches or dents.
      • Before returning a Mobile/Laptop/Tablet, the device should be formatted and screen lock should be disabled. iCloud account should be unlocked for Apple devices.

      Know more about the Return Policy here

    In The Box
    • Sales Package
      • SMPS Unit, Cables, User Guide
    • Brand
      • Seasonic
    • Series
      • S12II Bronze Series
    • Power Output
      • 520 W
    • Processor Support
      • Intel and AMD Processor Support
    • Power Rail
      • 1 x 12V Power Rails
    • Model Name
      • S12II-520
    • Power Factor Correction (PFC)
      • Active PFC with Value of 0.99
    • Input Voltage 1
      • 100 - 240 V
    • Input Frequency
      • 50 - 60 Hz
    • Efficiency
      • 87 %
    Maximum Current
    • Current at DC Output of +3.3 V
      • 24 A
    • Current at DC Output of +5 V
      • 24 A
    • Current at DC Output of +12 V
      • 40 A
    • Current at DC Output of -12 V
      • 0.8 A
    • Current at DC Output of +5 V sb
      • 2.5 A
    • Fan Type
      • 1 x 120 mm Ball Bearing, Smart and Silent Fan Control (SFC), Soft-Mounting Rubber Cushion
    • Temperature
      • 0 to 50 °C (Operating Temperature)
    • Humidity
      • 20 to 80 % (Operating Humidity)
    • Protection
      • Over Voltage Protection (OVP), Over Temperature Protection (OTP), Short Circuit Protection (SCP)
    • Certification
      • 80 Plus Bronze
    • Motherboard
      • 1 Motherboard Connector with 20 pin, 24 pin
    • CPU
      • 2 CPU Connector with ATX 12V (4 pin) + EPS 12V (8 pin)
    • PCI-e
      • 1 PCI-e 6 pin
    • SATA
      • 6 SATA Cables
    • Floppy
      • 2 Floppy Connector with 4 pins
    • Peripheral
      • 6 Peripheral Connector with 4 pins
    Other Features
    • Additional Features
      • All-in-One DC Cabling Design
    • Width x Height x Depth
      • 150 x 86 x 140 mm
    • Domestic Term
      • 3 Years
    • Service Type
      • Carry In
    • Covered in Warranty
      • All Manufacturing Defects
    • Not Covered in Warranty
      • Burnt or physically damaged or customer induced damaged is not covered under warranty
    • Warranty Type
      • Limited
    • Warranty Summary
      • Customers can get RMA support by sending email to with their purchase details. After verification that the product is sold by Tirupati, they will receive instructions on how to return the defective product They can also get in touch with any of our branch offices across india for rma support with the proof of purchase.
    103 Ratings
    40 Reviews
    • 5
    • 4
    • 3
    • 2
    • 1
    Most Helpful 
    Most Recent 
    By Certified Buyers 

    Charging over the Mrp and wrong warranty period

    The product is good. Original MRP of this product is 4250.00 (inclusive of all taxes) and the warranty period is 3 years as shown on the box. Flipkart is charging 4188.57 + 209.43 as tax total of 4398.00, 148.00 more than the MRP and showing the warranty on the website is 5 years which is actually wrong and misleading. If u want to buy the product buy from somewhere else.

    Niloy Roy

    Certified Buyer

    5 Nov, 2012

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    Amazing so far

    I think most people have covered the stellar performance of this PSU in their reviews. I'd like to add a couple of points :

    1.Before assembling my new PC I took a multi meter to the output of the Seasonic S12II 520. The amperage of 12v/5v/3.3v was within miliamps of what was claimed. And that is amazing. My experience with another popular competitor was disappointing.

    2. There is hardly any noise from this PSU again comparing with the popular competitor this was superior in every respect...

    Dibyendu Das

    Certified Buyer

    26 May, 2012

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    ( Must Read) Great unit ...a little warranty confusion though

    What i want to share:
    * Lemme tell this to help some people who are confused with compatibility of these active PFC PSU's and UPS. Its runs perfectly with my Luminous 600 VA, and also runs great on 850 VA sinewave sukam shiny inverter.
    * powering 560 ti OC and 5 HDD's with ease

    * Great Unit : A must buy
    * Silent
    * Runs cool with massive load

    * You can see 5 years warranty but packing shows 3 Years.

    Hitesh Dewani

    Certified Buyer

    4 Nov, 2012

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    Very Good Gaming Power Supply

    Got this during the first week of June 2012 and going great since then.
    Ample number of cables and a spare converter cable.
    All cables are sturdy and are covered with glass fibre gauze sleeve to protect from damage from any fans/ hot spots.
    A couple of cables needed for motherboard/ GPU connections may clutter with the GPU/ cabinet/ cPU fans. One can easily take care by straping.
    The ATX cable, HDD, ODD cables can be managed very well.
    I have connected 12V 24 pin (ATX), 8 pin, 4 pin to ...

    M. G. Krishnamoorty

    Certified Buyer

    24 Sep, 2012

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    Great PSU though slightly expensive

    There are a lot of options in the price range that this PSU sells for. However, what drew me to this one was the 5 years warranty as well as the fact that it is the Original Equipment Manufacturer(OEM) that is selling the units unlike some other brands which are re-branding units from other OEMs. It is slightly more expensive but it gives good clean silent power and I am using this with the MSI Cyclone R6850 1GDDR5 PE/OC GPU with no problems at all.

    Ameya Gargesh

    Certified Buyer

    21 Mar, 2012

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    Very good PSU

    Seasonic has a good reputation and makes high quality PSUs
    I am using this with a phenom ii x4 970 processor and gtx 550ti and it runs smoothly
    40Amps on 12v rail
    Made with highest quality parts

    Cables are Stiff and hard to bend

    P.S - If you are confused btw corsair cx500 and this then I would suggest you buy this PSU because corsair's CX and GX series PSUs are pretty generic and have a high chance to be dead on arrival(DOA) also this has 40amps compared to 34 of the corsai...

    Jaideep Sharma

    Certified Buyer

    20 Jun, 2012

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    Best and reliable !

    Close your eyes and get it ... It's awesome .
    My PC config
    i5 4440 and GTX 960 STRIXX edition

    Didn't face any problems and i'm sure i will not any in the future.

    Although the seller shipped me a broken product on the first attempt ... I ordered a replacement and got a proper one

    Vineeth Sai

    Certified Buyer

    4 Aug, 2015

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    Internationally The best in 500-520 watt

    THE BEST MODEL - many good features and good quality product.Input voltae and other protections are very good features whics are not available in local/simple psu.
    It works fine in range of (90-250 watt) input power, which is good in fluctuating conditions and it is silent machine which works perfectly. I'm writing this review after 4 month of use and fid this psu very efficient. Don't ever go for cheap psu because some people thinks that psu only deliver power to other parts,it just do t...


    Certified Buyer

    29 Aug, 2013

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    Fantastic PSU

    This is a fantastic PSU. I have a Corsair VS550 which theoritcally has 30W more output than this Seasonic model. But Seasonic outperforms without working too hard!

    The Seasonic's interface connectors are just easy to plug-in and plug-out. With the VS550, I had to try hard to do the same. Both PSUs have similar braided wires and that is all very well.

    The Seasonic boasts 2 PCIe connectors: 1 with 6-pin and another with 6+2-pin. The spec in Flipkart says only 1 PCIe 6-pin. This should be cor...

    Arvind A S

    Certified Buyer

    20 Aug, 2013

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    Best PSU in this price range

    Using IBALL psus for years.I decided to buy this PSU for my Geforce GTX 650 ti Boost which requires 24A on +12v rail. This PSU provide 40A on +12v rail which is amazing. Quility of this product is best. You never go back to those cheap PSUs after using this. PSU is so silent for one moment you think it isn't working. Price is high but quallity does cost. So go for it you want disappoint.

    Ravi Patel

    Certified Buyer

    8 Jun, 2013

    Report Abuse
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