SeaSonic S12 II SS-330GB 330W ATX12V V2.3 80 PLUS Certified Active PFC Power Supply - Retail

quiet gem

Reviewed By: on 7/11/2009

Tech Level: high - Ownership: 1 week to 1 month

This user purchased this item from Newegg

Pros: Beautifully made, quiet, great cabling and connectors. Will buy more when on sale again.

Cons: Seems a bit pricey at $67.

Did you find this review helpful?

Thanks for the valuable feedback you provided!

Well Made, Efficient, Quiet Power Supply

Reviewed By: ClagMaster on 6/15/2009

Tech Level: somewhat high - Ownership: 1 month to 1 year

This user purchased this item from Newegg

Pros: I goofed the earlier 6/10/2009 review and I invite Newegg to delete it. This is what I really wanted to say about this excellent power supply …

This 330W power supply is well made, very efficient and very quiet. This power supply has excellent build quality. This power supply has a 120mm fan which is well balanced for acoustics and thermal control. I cannot hear the fan while the power supply is operating. This power supply has connectors adequate to support a mainstream PC build. A separate adapter is provided to support up to two Floppy drives.

This power supply offers good quality and value for the price. I feel I got my moneys worth.

Cons: Cables are sized for an ATX mid-tower case and are rather long for a micro-ATX case. I had some difficulty stashing the unused cables in my micro-ATX mid-tower case. If you are building a home theater system with tighter confines, this power supply may not be for you.

A 6-pin PCI-E connector is provided which is seems incredible for a power supply of 330W rating. I do not think this power supply provides adequate current for a system using a mid-range graphics card that requires a 6-pin PCI-E connector. I would suggest the Seasonic SII or MII 430W or 500W power supplies for such a system.

Minor cons I can think of are: lack of modular cables and lack of delayed fan shutoff function – where the fan remains on for 2 minutes after the PC is shutdown to remove heat from the supply case

Other Thoughts: I am well satisfied with this power supply. I use this power supply in a micro-ATX PC that I keep off line for private correspondence, finances and journal.

I have been using this power supply since January 2009 without incident. In my opinion this power supply is reliable.

The Seasonic S12II 330W is well rated in the Anandtech 12/2008 power supply roundup with regard to efficiency, DC voltage regulation and acoustic performance. This power supply contains quality electrolytic capacitors rated for 105C and a solid capacitor in one demanding location. Voltage variation on 12V, 3.3V and 5V rails with changing load is excellent. Efficiency exceeds 85% at 50% load. This is a quality power supply that I am confident will give me years of service.

Seasonic has released a Bronze Certified 330W Seasonic S12II. Specifications between this and the bronze certified power supply are identical; I strongly suspect both are the same unit.

Did you find this review helpful?

Thanks for the valuable feedback you provided!

Reviewed By: ClagMaster on 6/10/2009

Tech Level: somewhat high - Ownership: 1 month to 1 year

This user purchased this item from Newegg

Pros: This 330W power supply is very quiet and efficient. This power supply has excellent build quality. This power supply has a 120mm fan which is well balanced for acoustics and thermal control. I cannot hear the fan while the power supply is operating. This power supply has adequate connectors are provided to support a mainstream PC build. A separate adapter is provided to support up to two Floppy drives. This power supply offers very good value for the price.

Cons: Cables are sized for an ATX mid-tower case and are rather long for a micro-ATX case. I had some difficulty stashing the unused cables in my micro-ATX mid-tower case. If you are building a home theater system with tighter confines, this power supply may not be for you.

A 6-pin PCI-E connector is provided which seems incredible for a power supply of 330W rating. This power supply provides adequate current for a system using a mid-range graphics card actually requiring a 6-pin PCI-E connector. I would recommend the Seasonic 430W or 500W power supplies for such a system.

Other Thoughts: I am well satisfied with this power supply. I use the Seasonic S12II 330W power supply in a micro-ATX PC I keep off line for private correspondence, finances and journal. This power supply has been operating since January 2009 without incident. In my opinion this power supply is reliable.

The Seasonic S12II 330W was well rated in the 12/2008 Anandtech power supply roundup with regard to efficiency, DC voltage regulation and acoustic performance. This power supply contains quality electrolytic capacitors rated for 105C and a solid capacitor in one demanding location. Voltage variation on 12V, 3.3V and 5V rails with changing load is excellent. Efficiency exceeds 85% at 50% load. This is a quality power supply that I am confident will provide me years of service.

Seasonic has released a Bronze Certified 330W Seasonic S12II. Since published specifications between this and the bronze certified power supply are identical; I strongly suspect both are really the same unit.

Did you find this review helpful?

Thanks for the valuable feedback you provided!