SeaSonic Electronics Prime Ultra 850W 80-PLUS Platinum Modular Power Supply

SeaSonic Electronics Prime Ultra 850W 80-PLUS Platinum Modular Power Supply

SeaSonic Electronics Prime Ultra 850W 80-PLUS Platinum Modular Power Supply

SeaSonic Electronics Prime Ultra 850W 80-PLUS Platinum Modular Power Supply

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Expected availability: 7-10 business days

Product Highlights

  • 850W Single +12V Rail
  • 135mm Cooling Fan
  • Intel ATX 12V Form Factor
  • 80 PLUS Platinum Certified
  • Flat Fully-Modular Cables
  • 2 x CPU Connectors
  • 6 x PCI-E Connectors
  • 10 x SATA Connectors
  • 5 x 4-Pin Connectors
  • 1 x Floppy Connector
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B&H $500 Gift Card Dash

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Share a favorite product for chances to win one of eight $500 B&H Gift Cards!
1 new winner announced every Monday starting Nov 5th!
Limit 1 entry per day: Come back every day to increase your chance of winning.

Be sure to mention #BHWishList when you share!

Congrats to our winners so far:

Next winner: Nov 19th

James Z. (Wk 1)

Official Rules


NO PURCHASE IS NECESSARY TO ENTER OR WIN. The B&H $500.00 Gift Card Dash (the "Sweepstakes") is void where prohibited by law and is sponsored by B&H Foto & Electronics Corp., 440 Ninth Avenue, New York, NY 10001 ("Sponsor"). It is not sponsored or endorsed by Facebook or Twitter in any way.

Entry Period/Methods of Entry. The Sweepstakes will run from on or about October 28, 2018 until on or about December 23, 2018 (the "Entry Period"). Entries received outside the Entry Period are void. Enter the Sweepstakes via either one of the following methods. (1) Share any product found on the B&H website (the "Website") on Facebook or Twitter via the dedicated links contained on the website using the hashtag #BHWishlist; or (2) Mail a postcard (postmarked during the Entry Period) containing your name, address, phone number, and email address, and indicate the subject(s), if any, about which you are interested in receiving future emails from B&H (e.g. photo, video, audio, computers, home theater, portable entertainment ) (optional) to: B&H $500.00 Gift Card Dash Sweepstakes, c/o B&H Foto & Electronics Corp., 440 Ninth Avenue, New York, NY 10001 (either option, an "Entry"). Entries must not, in the sole and absolute discretion of the Sponsor, contain obscene, provocative, defamatory, sexually explicit, or otherwise objectionable or inappropriate content. Entries deemed by Sponsor to be inappropriate will be disqualified. Entries owned by a third party, or the use of any trademarks, service marks, logos, brands, or products owned by a third party are not acceptable for entry into the Sweepstakes. Limit 1 entry per person, per day.

Winner Selection/Prizes/Odds. The B&H Social Team will randomly select a winner from among all eligible entries every Monday during the Entry Period, for a total eight (8) winners (each a "Winner"). Each Winner will receive a B&H Gift Card pre-valued in the amount of $500.00. No cash or other substitutions will be offered. Winner selection is in the sole and absolute discretion of the B&H Social Team. Any taxes are the sole responsibility of the winner. Winners will be notified and receive their prize at the email address associated with the account to which their Entry was posted or the email account provided with a mail-in entry. The odds of winning depend on the number of eligible entries received.

Identity of Winners/Eligible Participants. Winners will be identified by the email account associated with the Facebook or Twitter account from which their Entry was submitted or the email account provided with a mail-in entry. An email account holder shall mean the natural person assigned to such email account by the internet access or online service provider or other organization responsible for assigning email addresses for the domain associated with such email account. Any issues regarding the identity of a Winner shall be resolved by Sponsor in its sole discretion. The Sweepstakes is only open to residents of the United States that are at least eighteen (18) years of age on their entry date and is not open to employees of Sponsor, their immediate family, any person domiciled with such employees, or any affiliates or subsidiaries of Sponsor.

Entry Ownership/Entrant Agreements. Entrants retain full ownership and copyrights to their Submission. However, by entering the Sweepstakes entrants grant Sponsor permission to use their Entries for promotional purposes on their respective social media channels with proper credit. Entrants also agree: (a) to be bound by these Official B&H $500.00 Gift Card Dash Sweepstakes Rules; (b) that any claims related to this Sweepstakes shall be resolved individually without resort to any form of class action and that awards, shall be limited to actual out-of-pocket costs incurred in entering the Sweepstakes, and shall not include incidental or consequential damages or attorneys fees; and (c) that any actual or perceived ambiguities in these rules shall be interpreted by Sponsor in their sole discretion.

Limitation of Liability/Sponsor Modification/Cancellation Rights/ Choice of Law/ Venue/ Winners List. Sponsor is not responsible for incomplete entries or for failure to receive entries due to technical failures or human error of any kind. Winners agree that Sponsor will have no responsibility for losses or damage of any kind resulting from the acceptance, possession, or use of the prizes. Except where prohibited, participation in the Sweepstakes constitutes entrant's consent to the publication of his or her name by Sponsor in any media for commercial or promotional purposes without limitation or further compensation subject to Sponsor's respective Privacy Policies. Sponsor may modify or discontinue the Sweepstakes at any time and may disqualify from the Sweepstakes any person it determines, in its sole discretion, to have attempted to or actually tampered with or otherwise abused any aspect of the Sweepstakes. Entrants agree that in the unlikely event a dispute arises in connection with this Sweepstakes, it will be governed by the laws of the State of New York and heard exclusively in a court of applicable jurisdiction in the County and State of New York irrespective of any choice of law provisions to the contrary. To receive names of the winners by U.S. mail, please mail a self-addressed stamped envelope to: B&H Foto & Electronics Corp., Attn: B&H $500.00 Gift Card Dash Sweepstakes, 440 Ninth Avenue, New York, NY 10001. Any Winners List request must be received by B&H within one (1) year of the date the Sweepstakes is conducted.

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SeaSonic Electronics Prime Ultra 850W overview

  • 1Description

The Seasonic Electronics Prime Ultra 850W Platinum Power Supply is designed to provide up to 850W of power to desktops with powerful video cards and a plethora of drives and peripherals. The modular design of this power supply means that you only must connect the power cables that you need, so you don't have to deal with a mass of unnecessary wires.

All the included cables feature gold-plated connectors that are designed to help improve connectivity, and are constructed to be flat, in order to help with airflow and make cable management easier.

Additional and notable features include an 80 PLUS Platinum certification, which provides 92% power efficiency at 50% system load. Plus, Premium Hybrid Fan Control, which is designed to keep fan noise to the lowest possible level. To this end, the Prime Ultra 850W will go completely fanless until the PSU is under 40% load or more.

Prime Ultra Improvements
Some unique features of the Prime Ultra line include 180-degree SATA connectors, a SATA 3.3 adapter that supports the "Power Disable" (PWDIS) feature of newer, high-capacity hard drives, and the inclusion of a PSU tester.
80 PLUS Platinum
The higher the level of efficiency of the power supply, the less power gets wasted in the form of excess heat. The 80 PLUS Platinum certification provides greater than 90, 92, and 89% efficiency at 20, 50, and 100% operating loads, respectively.
Fluid Dynamic Fan Bearing
Fluid Dynamic Bearing (FDB) fans are designed to take advantage of the impact absorbance effects of oil. They are reliable and generate considerably less operating noise and heat than ball bearing fans. The lubrication of the bearing surface reduces friction and vibration and therefore lowers overall power consumption. Due to the effortless, quieter rotations and its durable construction, this reliable fan technology also increases the lifespan of the fan.
Cable-Free Connection Design
This design feature from Seasonic's engineers has changed how the back panel and PCB are connected. Instead of typical cabling, they are connected by a copper plate in this power supply. This change is designed to lower the chance of production errors during manual insertion, as well as helping to improve output power quality.
Micro Tolerance Load Regulation
This design helps to keep the output voltage within a very tight range, achieving under 0.5% load regulation. This equates to a stability that is optimal for high-performance computer systems.
In the Box
SeaSonic Electronics Prime Ultra 850W 80-PLUS Platinum Modular Power Supply
  • Main Power Cable
  • 2 x CPU Cables
  • 3 x PCIe Cables
  • 3 x SATA Cables
  • 2 x Peripheral Cables
  • Floppy Cable
  • PSU Tester
  • Limited 12-Year Warranty
  • Table of Contents
    • 1Description

    SeaSonic Electronics Prime Ultra 850W specs

    Cables 1 x 24" / 61 cm Main power (24/20-Pin) cable
    2 x 25.6" / 65 cm CPU (8/4-Pin) cable
    4 x 26.6" / 75 cm PCIe (8/6-Pin) cables with two connectors on each cable
    2 x 29.9" / 76 cm SATA cables with four connectors on each cable
    1 x 31.5" / 80 cm SATA cables with four connectors on each cable
    1 x 27.2" / 69 cm Peripheral cable with three connectors
    1 x 18.5" / 47 cm Peripheral cable with two connectors
    1 x 4" / 10.1 cm Floppy drive cable
    AC Input Voltage: 100 to 240 V
    Current: 6.5 to 13 A
    Frequency: 50/60 Hz
    DC Output +3.3 V, 20 A, 100 W
    +5 V, 20 A, 100 W
    +12 V, 70 A, 840 W
    -12 V, 0.3 A, 3.6 W
    +5 VSB, 2.5 A, 12.5 W
    850 W continuous power
    Cooling Fan Size: 135 mm
    Fan Control: Premium Hybrid Fan Control
    Fan Bearing: Fluid Dynamic Bearing
    Life Expectancy: 50,000 Hours at 104°F / 40°C, 15 % - 65 % RH
    Operating Temperature 32 to 122°F / 0 to 50°C
    MTBF 150,000 hours at 77°F / 25°C (excluding fan)
    80 PLUS Certification Platinum
    Protection OPP, OVP, UVP, OCP, OTP, SCP
    Safety / EMC cTUVus, TUV, CB, CCC, BSMI, EAC, and CE
    Compliance Energy Star, RoHS, WEEE, ErP Lot 6, and REACH
    Form Factor Intel ATX 12 V
    Dimension (W x D x H) 6.7 x 5.9 x 3.4" / 17.0 x 15.0 x 8.6 cm
    Packaging Inforybuwtwydtfqevxwxzvczwzq
    Package Weight 8.3 lb
    Box Dimensions (LxWxH) 13.3 x 8.1 x 5.4"

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