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Seasonic S12II 520 Watts PSU

  • 520 W Power Output
  • 1 x 12V Power Rail
  • 100 - 240 Vac Input
  • 87 % Efficiency
3 Years Seasonic India Warranty and Free Transit Insurance. See Details
Rs. 5500 10% Off
Rs. 4950
Inclusive of taxes
(Free home delivery)
84% positive feedback [?]
(990 ratings)
COMBO OFFER: Exciting combos available View combos
  • Call 1800 208 9898 (toll free) for assistance from our product expert.
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Standard delivery in 10-11 business days. [?]
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Key Features of Seasonic S12II 520 Watts PSU

  • 520 W Power Output
  • 1 x 12V Power Rail
  • 100 - 240 Vac Input Voltage
  • 87 % Efficiency

Specifications of Seasonic S12II 520 Watts PSU

In The Box
Sales Package SMPS Unit, Cables, User Guide
General
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
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
Features
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
Connectivity
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 Double Forward Converter Design
Dimensions
Width x Height x Depth 150 x 86 x 140 mm
Warranty
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 rma@tirupati.net 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... Read More

Please note: All products sold on Flipkart are brand new and 100% genuine

Reviews of Seasonic S12II 520 Watts PSU

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TOP REVIEWS View All Top Reviews (35)

'Top Reviews' lists the most relevant product reviews only. Show ALL instead?
★★★★★
★★★★★
Jaideep Sharma
20 Jun 2012
The 'certified buyer' badge indicates that this user has purchased this product on flipkart.com.
certified buyer
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
Pros
40Amps on 12v rail
Silent
Made with highest quality parts

Cons
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 corsair's.

A PSU is a very important part of a computer so you should always go for a good branded one li...
()

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
Pros
40Amps on 12v rail
Silent
Made with highest quality parts

Cons
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 corsair's.

A PSU is a very important part of a computer so you should always go for a good branded one li...
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
Pros
40Amps on 12v rail
Silent
Made with highest quality parts

Cons
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 corsair's.

A PSU is a very important part of a computer so you should always go for a good branded one like this one.

4 of 4 users found this review helpful.
★★★★★
★★★★★
26 May 2012
The 'certified buyer' badge indicates that this user has purchased this product on flipkart.com.
certified buyer
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.

3. The price maybe a bit steep for a non modular PSU but the quality seems to be very good.

4....
()

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.

3. The price maybe a bit steep for a non modular PSU but the quality seems to be very good.

4....
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.

3. The price maybe a bit steep for a non modular PSU but the quality seems to be very good.

4. Supplied power cable was a european one ( in europe the ground pin is in the socket not the plug) . I had to get my own power cord . I really wanted to deduct a star for that but the unit is just to true.

The only thing left to examine is how it would fare in the next few years. That only time will tell. But it looks like I might be switch to Seasonic for my future rigs.

6 of 7 users found this review helpful.
★★★★★
★★★★★
04 Nov 2012
The 'certified buyer' badge indicates that this user has purchased this product on flipkart.com.
certified buyer
( 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

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

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

3 of 3 users found this review helpful.
★★★★★
★★★★★
05 Nov 2012
The 'certified buyer' badge indicates that this user has purchased this product on flipkart.com.
certified buyer
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.

2 of 2 users found this review helpful.
★★★★★
★★★★★
24 Sep 2012
The 'certified buyer' badge indicates that this user has purchased this product on flipkart.com.
certified buyer
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 the motherboard, one 6 pin to the PCIe/ GPU, 3 SATA power connectors for 1 SSD, 1 HDD and 1 DVD driv...
()

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 the motherboard, one 6 pin to the PCIe/ GPU, 3 SATA power connectors for 1 SSD, 1 HDD and 1 DVD driv...
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 the motherboard, one 6 pin to the PCIe/ GPU, 3 SATA power connectors for 1 SSD, 1 HDD and 1 DVD drive. Still there are many spare connections. Use the OEM's strap for managing the unused spare cables. In all I have 5 fans running inside the cabinet and one in the PSU. Ventilation has to be maintained.
This PSU can give 40A @ 12V max.
Cooling fan is pretty much silent with silent fan control (SFC).
I have mounted it at the bottom of my Cooler Master CM 690 II Advanced Mid Tower Cabinet. The upward draft of the cooling fan accumulates dust on the mesh filters. Simple brushing is good enough once in a while.
The voltage stability is less than +/-5% (Checked with BIOS), where as +/- 10% is the norm and power efficiency rated is 87%, which is best in the class, compared with Corsair CMPSU-600CXV2UK and Cooler Master GX 550.
I have underclocked the RAM voltage by -0.05V to keep it closest to +1.50V, else RAM starts giving errors in Memtest86+. Current RAM's are not very forgiving.
There was a short circuit on my motherboard and yet the pSU, which was doubted as the souce, is working fine.
Comes with 5 year Warranty.

There was a differrent picture of modular x-series, Which did influence me while placing the order, but I had cross verified with other sources. The picture was changed immediately.

My rig is
CPU: AMD FX-4100, 3.6 GHz
CPU Cooler: Cooler Master Hyper TX3EVO
Motherboard: Biostar TA990FXE
RAM: G.Skill RipjawsX DDR3 16GB RAM (F3-12800CL9Q-16GBXL)Quad Channel,
Graphic Card: MSI AMD/ATI R6850 Cyclone 1GDS Power Edition/OC 1GDDR5
Power Supply: Seasonic S12II-520 520 Watts PSU~
Cabinet: Cooler Master CM 690 II Advanced Mid Tower Cabinet
HDD: WD Caviar Green 1 TB HDD Internal Hard Drive (WD10EARX)
SSD: Verbatim 64 GB Internal Solid State Drive
Optical Drive: Asus DRW-24B3ST Internal Optical Drive (Black)
Monitor: Dell 24 Inch Full HD WideScreen LED Monitor (ST2420L)
Audio: Logitech Z506 5.1 Multimedia Speakers
Keyboard & Mouse: Logitech Wireless Combo (MK320) USB
OS: Windows 7 Home Premium

2 of 2 users found this review helpful.

Recent Top Reviews

View all
★★★★★
★★★★★
07 Jul 2014
The 'certified buyer' badge indicates that this user has purchased this product on flipkart.com.
certified buyer
Seasonic is the best in PSUs

Clean. Efficient. Extremely silent. No humming sound. Regulates the fan based on usage. Loads of connectors. I have tried all PSUs and Seasonic is the best! (View complete review)

★★★★★
★★★★★
30 Jun 2014
The 'certified buyer' badge indicates that this user has purchased this product on flipkart.com.
certified buyer
Silent as mute and best for gaming rig!!

Flipkart delivery took 5 days time for delivering mine and i am a little disappointed at that but anyway can be forgivable for its awesome packaging

About product:

Finally i got my gaming rig with this awesome PSU and it powers the entire setup without any hiccups.

Pros:
Running the entire ri...
(View complete review)

★★★★★
★★★★★
14 Jun 2014
The 'certified buyer' badge indicates that this user has purchased this product on flipkart.com.
certified buyer
Amazing...........

Using it from past 1 year...not a single problem yet..........
Awesome quality by seasonic and the perfomance is also good...as i excepted....
working fine with my gtx 660 graphic card........
value for money product.....
(View complete review)

★★★★★
★★★★★
09 Apr 2014
Just great

bought it 3months ago...super silent and very nice product...specially because its a seasonic branded power supply..if u have a monster gpu then u will need this baby for sure...go for it if u want a 500 watt psu which can really perform at its best... (View complete review)

     Seasonic S12II 520 Watts PSU Price in India: Rs. 4950

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