The SeaSonic SS-300ET Bronze power supply is designed with the value-conscious user in mind. Certified 80 PLUS Bronze, this active PFC unit runs at up to 85% (or higher) efficiency while delivering a 50% load, so you know you're saving energy and money on your power bills month after month. With 300W of total output power, there's plenty of juice for the most home or office situations.
Featuring short circuit protection, the SeaSonic SS-300ET Bronze power supply provides the maximum reliability. Cooling is handled by a 120mm fan with super low noise control. A hexagonal grid pattern on the back panel ensures that the components will get plenty of airflow to keep the power supply cool and operating at peak performance.
ATX 12V CompatibleCompatible with the ATX12V v2.3 standard, the SeaSonic SS-300ET Bronze power supply provides maximum power stability to drive the processors as well as other system components.
300W Maximum PowerA maximum power of 300W delivers safe, reliable output for average computer systems.
80 PLUS Bronze CertifiedThe 80 PLUS Bronze certified power supply provides high power efficiency of at least 82% at any load between 20% and 100%, saving your money on your electrical bill, reducing heat in your computer's system and prolonging its life.
120mm Cooling FanThe SeaSonic SS-300ET Bronze power supply features a 120mm fan for increased overall airflow and heat dissipation in the power supply enclosure.
Learn more about the SeaSonic USA SS-300ET Bronze
General
Brand
SeaSonic
Model
SS-300ET Bronze
Details
Type
ATX12V V2.3
Maximum Power
300 W
Fans
120mm Fan
PFC
Active
Main Connector
20+4Pin
PCI-Express Connector
No
SLI
No
Haswell Support
No
CrossFire
No
Efficiency
>=82%
Energy-Efficient
80 PLUS BRONZE Certified
Over Voltage Protection
Yes
Input Voltage
100 - 240 V
Input Frequency Range
47 - 63 Hz
MTBF
>100,000 Hours
Approvals
CUL, TUV, CB, CCC, CE, FCC, RoHS
Features
Features
Double forward converter circuit High efficiency and reliability Low ripple & noise Super low noise fan control Short circuit protection on all outputs Over power protection 100% hi-pot test 100% burn in, high temperature cycled on/off
Pros: If you are looking for a computer power supply unit (PSU)that is capable of sustaining your computer for several years then choose a SeaSonic. I choose these for my personal build, my family members, and recommend them to anyone that want a computer built for their home. Desktop that are built to last will have a SeaSonic PSU pushing the power through them...great PSU for the price.
Cons: None so far.
Overall Review: I recommend these power supply units to anyone that build their own computer or has one built.
Pros: 80 Plus Bronze
Low Wattage
Great Brand
Runs cool & quiet
Intel i3 System
Idle: 40 watts
Load: 70 watts
Cons: Just in case people may not know, it should state somewhere that as an OEM PSU it does not come with a power cord. This wasn't issue for me as I have plenty but others may not and it would be best if they knew ahead of their purchase.
Overall Review: As others have noted the cable lengths are a little on the short side, this mainly applies to bottom mounted PSU cases, if your case uses a top mount for the PSU everything should reach just fine.
Saves Power, ROI in about 1 Year3/23/2010 3:54:04 PM
Pros: Significant power savings over typical/older power supplies. Using a Kill A Watt device, I measured my system at ~147W. I was using a Sparkle PSU that's about two years old. After switching to the SS-300ET, the power dropped to ~110W. My system is on 24/7, so I figure the 37W savings will net about $35-$40 a year in power cost reduction. That'll just about pay back the cost (ROI) in one year. Highly recommended.
Cons: Caps are "Su'scon" brand. Websites and discussions of the dreaded "Capacitor Plague" (early capacitor failures common in motherboards and power supplies) indicate this brand has had problems in the past. Only time will tell if the SS-300ET will suffer from capacitor failures too. I would have preferred to find top-quality capacitors inside.
Overall Review: High quality ADDA 120mm ball-bearing fan (AD1212MB-A71GL) is whisper quiet and I'd expect it to have a very long and reliable lifespan. This PSU is only 300W, but this is sufficient for many systems, and power efficiency is often better using a properly sized PSU. If you wonder how much power your system actually uses, get a "Kill A Watt" device (available on NewEgg and surprisingly inexpensive, in my opinion) and find out.
20 units installed, all working8/5/2010 9:10:50 AM
Pros: I bought 20 of these units over the last few months. Every single one powered right up and worked flawlessly. None have had any problems at all. They're whisper quiet and save power. Even if a power supply is still working, I think it's worth upgrading to one of these for the power savings and quiet operation.
Cons: None.
Overall Review: Power consumption is significantly lower on every system when these power supplies are used to replace the standard one. For me, replacing a typical 300W power supply nets a 20-30W reduction. When replacing an oversize power supply (450W/550W), I've seen 35-40W reduction, and these power supplies have no problem running the system.
Pros: SeaSonic are still the best. Have always used them and they are always silent running, steady and reliable. Able to withstand power outages and surges without a surge protector. And are as energy efficient as any psu on the market. (tried fsp and these are more efficient)
Cons: None
Overall Review: My old 380 watt SeaSonic used to power just about any system I put it in and it is going on 7 years old. It is still powering a system now. Tried this little 300 watt...it was not quite enough for the following htpc system: 890GX chipset, 95 watt quad core, 8 gigs ram, 2T WD "green" drive, 80G SSD, 5450 graphics card, HT omega striker sound card. System would have random shutdowns. Changed to an older 550watt Mushkin modular supply and system runs perfect.
The 300watt is now in this system: 780G chipset, 65 watt dual core, 2G ram, 160G SATA drive (onboard graphics and sound). Runs perfect and idles under 40 watts.
Great mATX PSU - Quiet & Quality but short cables1/9/2014 7:47:27 AM
Pros: I have been getting this power supply from another site... one that has auctions, and they are like-new, perhaps new system pulls, but sold as refurbished. I have bought 8 of them, and they have all been rock solid and QUIET. I have replaced several OEM (junk) Dell, HP, etc. PSU's with this one, and they have all worked great. And several people have commented about how much quieter their PCs are.
Cons: Don't buy this PSU for an ATX case. Don't buy this PSU if you want an 8-pin CPU plug. Don't buy this PSU to power a 6-pin video card.
Overall Review: For a basic home or office PC in an mATX case, and at the right price, this PSU is great.
Cons: Doesn't have 8-pin CPU power that most motherboards have now days. My mobo still operates with just the 4-pin connection so not a big deal in the end.
Overall Review: Wish newegg would list all the power connectors that power supplies have.
Pros: If you are looking for a computer power supply unit (PSU)that is capable of sustaining your computer for several years then choose a SeaSonic. I choose these for my personal build, my family members, and recommend them to anyone that want a computer built for their home. Desktop that are built to last will have a SeaSonic PSU pushing the power through them...great PSU for the price.
Cons: None so far.
Overall Review: I recommend these power supply units to anyone that build their own computer or has one built.