Rosewill Tachyon 650W Power Supply Review

Rosewill Tachyon 650W PSU – Introduction

Even though Rosewill started off as an in-house brand of Newegg, the company evolved into a fully-fledged manufacturer and exporter. Today Rosewill’s products may not only be found all over the US but in several other countries as well, in both America and Asia.

As Rosewill used to be an in-house brand, it carries the “stigma” of being a supplier of rebranded products and, as is usually the case with in-house brands, that these were of mediocre to low quality. With their separation from Newegg however and their evolvement to a stand-alone company and manufacturer, Rosewill broke free of the shackles usually imposed to subsidiary companies and is today capable of offering all kinds of products, from cheap everyday items to high performance power supplies. But where the Tachyon power supply lands on?

On paper, the Tachyon is a very interesting product. It received an 80Plus Platinum certification, the highest a consumer power supply has ever achieved up to this date, the electrical specifications of the unit are very interesting, it is rated for operation at 50°C and it also is a semi-modular design; a good number of features for the $110.99 price (after rebate) at which the 650W version of the Tachyon currently retails at. It is however a good deal more expensive that competitive products, especially those rated at 80Plus Gold or Silver. It remains to be seen whether the performance of the Tachyon is enough to convince hardcore enthusiasts to pay the premium price for it.

Rosewill Tachyon 650W PSU features

• 80 PLUS PLATINUM Certified
• Continuous 650W@50°C
• Single strong 12V rail – idea for Gaming system
• SLI & CrossFire Ready – 4 x 6+2pin Connector
• Modular cable design
• 1x Silent 140mm Fan with Auto Fan Speed Control for better silence
• Active-PFC with auto AC-input voltage adjustment(100-240V)
• Black Coating Housing
• Mesh sleeving on all cables for easier cable routing and better ventilation
• Over Current/Voltage/Power Protection, Under Voltage Protection, and Short Circuit Protection provide maximum safety to your critical system components
• Safety & EMI Approval: cTUVus, FCC, CE, ROHS

Rosewill Tachyon 650W PSU specifications

Model	Tachyon-650
Series	Tachyon
Type	ATX12V v2.31 & EPS12V v2.92
Maximum Power	Continuous 650W@50°C
Fans	1 x Silent 140mm
PFC	Active
Main Connector	20+4Pin
+12V Rails	Single
PCI-E Connectors	4 x 6+2-pin
Modular Cabling Support	Yes
SLI Support	Yes
Power Good Signal	100-500ms
Hold-up Time	> 16ms
Efficiency	> 87%, Up to 92%
Over Voltage Protection	Yes
Overload Protection	Yes
Input Voltage	100 – 240 V
Input Frequency Range	47 – 63 Hz
Input Current	10A
Output	+3.3V@20A +5V@20A +12V@54A [email protected] [email protected]
MTBF	100k hours at 25°C, max. load, nominal input
Approvals	cTUVus, FCC, CE, ROHS
Dimension	5.9 x 3.39 x 6.7 inch 150 x 86 x 170 mm W x H x D
Weight	2.7 kg 5.95 lbs
Warranty	5-year One-to-One Replacement