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PRIME Platinum, 80 PLUS Platinum 850W, Fully Modular, ATX Power Supply

SKU: 11043997

Manufacturer: SEASONIC

MPN: SSR-850PD

Availability: Out of Stock


Price: $210.91
or as low as $7/month

PRIME 850 W Platinum

The Seasonic PRIME Platinum 850 watt power supply is a champion is stable and reliable power delivery. It boasts a near-perfect voltage output which represents Seasonic’s market leading engineering feat. This unit is ideal for users who want o reduces noise levels in their work environment, as it has an oversized, 135 mm Fluid Dynamic Bearing Fan that is controlled by Seasonic’s proprietary Premium Hybrid Fan Control. An innovative Cable-free Connection Design solution employs highly conductive copper plate to replace the traditionally used cables for a cleaner design an to increase power efficiency.

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 guarantees greater than 90 %, 92 % and 89 % efficiency at 20 %, 50 % and 100 % operating loads, respectively. The Seasonic Platinum Series represents the highest level of technology and efficiency achievement of Sea Sonic during its 40 years of commitment to engineering excellence.

Fluid Dyanamic Fan Bearing

High performance Fluid Dynamic Bearing (FDB) fans are designed to take advantage of the impact absorbance effects of oil. They are extremely 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 robust construction, this reliable fan technology also greatly increases the lifespan of the fan.

How it works

When the fan shaft rotates, high pressure oil drifts along the grooves of the bearing sleeve to generate a thin layer of lubrication between the bearing faces. As the speed increases, so does dynamic oil pressure and the shaft is lifted from the bearing to create smooth, effortless rotations. The herringbone shape of the groves helps to efficiently channel the lubricant and avert leakage.
The following illustration depicts the main characteristics of the FDB fans:

Premium Hybrid Fan Control

Seasonic’s vast experience in designing the most silent and efficient power supplies on the market was translated into the development of Hybrid Mode; a state-of-the-art fan control that enables users to keep the overall fan noise at the lowest possible level.

Power Supply Sound

The Seasonic PRIME Series is designed with very favorable level of acoustics and it uses carefully selected components and innovative circuit design to minimize sound output. Beyond our rigorous internal tests, the power supply also went through external testing with the most popular graphics cards to ensure that the sound at all loads would be kept at the lowest possible level. The chart compares the sound level of the Seasonic PRIME power supply to other ambient sounds.

Micro Tolerance Load Regulation

Seasonic’s latest design keeps the output voltage within a very tight range, achieving under 0.5 % (1 % for 1000 W and above) load regulation. This impressive electrical performance and stability makes this power supply an ideal choice for high-performance systems.

Cable-free Connection Design

Seasonic’s engineers have implemented a new design feature, where instead of cables; the back panel and the PCB (Printed Circuit Board) are connected by a copper plate. This breakthrough solution not only lowers the chance of production errors during manual insertion but it also improves output power quality.

Multi-GPU Setup

Our power supplies are equipped with 6-pin and 8-pin PCI-E connectors to support all GPU platforms.

Gold Plated Connectors

Gold plating critical connector pins (motherboard, CPU and PCIe cables) extends the lifetime of the connectors and greatly increases the efficiency of current transmission.

10 Years Warranty

Our commitment to superior Seasonic quality.
Specifications are subject to change without prior notice.

PRIME 850 Platinum Technical Specifications
80PLUS® Platinum
Form Factor Intel ATX 12 V
Dimensions 150 mm (W) x 170 mm (L) x 86 mm (H)
Fan Information Fan Size 135 mm
Fan Control Premium Hybrid Fan Control
Fan Bearing Fluid Dynamic Bearing
Life Expectancy 50,000 hours at 40 °C, 15 % - 65 % RH
Cable Information Modularity Fully Modular
Cable type Flat black cables
Electrical Features Operating Temperature 0 - 50 °C
MTBF @ 25 °C, excl. fan 150,000 hours
AC Input Full Range
Protection OPP, OVP, UVP, OCP, OTP, SCP
Safety and Environmental Safety and EMC cTUVus, TUV, CB, CCC, BSMI, EAC
Environmental Compliance Energy Star, RoHS, WEEE, ErP Lot 6, REACH
Warranty 10 Years
PRIME 850 Platinum
AC Input Voltage: 100 V - 240 V
Current: 11 - 5.5 A
Frequency: 50 Hz - 60 Hz
DC Output Rail +3.3 V +5 V +12 V -12 V +5 VSB
Maximum Power 20 A 20 A 70 A 0.3 A 3 A
100 W 840 W 3.6 W 15 W
Total continuous power 850 W