Review Index:

SilverStone Strider Platinum 550W Power Supply Review

Introduction and Features


Back by popular demand – today we are taking a detailed look at SilverStone’s new Strider Platinum Series 550W power supply. Not everyone needs or wants a high-capacity power supply and it is nice to see a medium range 550W unit with 80 Plus Platinum efficiency certification. Last month we looked at the Strider Platinum 850W unit and found it to be a very good power supply. In this review we are going to see if the 550W unit can live up to the expectations set by its big brother (tight voltage regulation, low AC ripple, high efficiency and quiet operation).

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The Strider Platinum Series currently includes four compact models: the ST55F-PT (550W), ST65F-PT (650W), ST75F-PT (750W) and ST85F-PT (850W), which SilverStone claims are the smallest fully modular ATX power supplies with 80 Plus Platinum efficiency on the market. The chassis measures 140mm (5.5”) deep.

All of the Strider Platinum Series PSUs are designed to provide quiet, reliable operation. The 120mm cooling fan incorporates a Fluid Dynamic Bearing (FDB) and an intelligent fan control permits fanless operation at low power. The overall performance is optimized with tight voltage regulation and low AC ripple on the DC outputs. And the unit comes backed by a 5-year warranty.

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SilverStone Strider Platinum Series Key Features:
•    550W, 650W, 750W and 850W DC power output
•    Compact design with a depth of only 140mm for easy integration
•    High efficiency with 80 Plus Platinum certification
•    100% Modular cables
•    Intelligent semi-fanless operation
•    Quiet 120mm cooling fan with Fluid Dynamic Bearing
•    24/7 Continuous power output with 40°C operating temperature
•    Strict ±3% voltage regulation and low AC ripple
•    Dedicated single +12V rail
•    Universal AC input (90-264V) with Active PFC
•    DC Output protections: UVP, OVP, OPP, SCP, OCP, and OTP
•    Dimensions: 150mm (W) x 86mm (H) x 140mm (L)
•    5-Year warranty
•    MSRP : $109.99 USD (550W model)

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Here is what SilverStone has to say about the new Strider Platinum Series PSUs:  "As desktop computers continue to advance toward ever more efficient and smaller designs, SilverStone is helping to drive the efficiency movement by releasing the Strider Platinum Series of power supplies. Created to be the smallest fully modular ATX power supplies with 80 Plus Platinum efficiency, they are also incredibly quiet with the ability to run in fanless mode. If the loading condition is below 20%, the fan in the power supply can remain off for silent operation during idle or low powered computing activities. Other great features inherited from previous Strider series includes ±3% regulation, powerful single +12V rail, 24/7 continuous power output, and multiple PCI-E cables. For those looking to build highly efficient systems in small footprints, the Strider Platinum is definitely the best choice.

Please continue reading our review of the SilverStone 550W Platinum PSU !!!

Video News

October 3, 2016 | 04:35 PM - Posted by Lance Ripplinger (not verified)

Silverstone is knocking it out of the park it seems with their power supplies lately. How do the reliability of the Rubycon caps compare to Nippon ones I wonder?

October 5, 2016 | 02:16 AM - Posted by Anonymous (not verified)

>Silverstone is knocking it out of the park it seems with >their power supplies lately. How do the reliability of the >Rubycon caps compare to Nippon ones I wonder?

They compare very favorably to each other in the opinion of the reviewers at

October 5, 2016 | 09:17 PM - Posted by Lee Garbutt

Rubycon are high-quality, Japanese made capacitors that are in the same catagory as Nippon Chemi-con and Hitachi.

October 3, 2016 | 07:30 PM - Posted by Master Chen (not verified)

Wow, even though this one's 550W, sheer components and looks-wise this feels more like a Corsair from the AX times.

October 7, 2016 | 01:23 PM - Posted by bungwirez (not verified)

Nice PSU. can PCper verify that Silverstone continue to use a 1:1 pinout setup? custom sleever worry...

October 13, 2016 | 12:24 PM - Posted by Lee Garbutt

I believe the answer to your question is yes. SilverStone typically uses the same connector/cable configuration on the majority of their modular power supplies. You can buy custom cable sets from them that work with most of their PSUs. The connector on the PSU end usually has the same pin count as the device end (8-pins on both ends of  the 8-pin EPS cables, etc.).

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