PSU W299G - is it PFC "pure sine wave"

I do not see PFC (power factor correction) in the description.

W299G = 875w, EPA, UPC, Delta NPS-875BB A (Interchangeable with U595G)

Its SILVER  80 PERCENT EFFICIENT PFC .  DELL HAS BEEN PFC ON ALL POWER SUPPLIES FOR MANY YEARS.  PART OF EPS12V as well as ENERGY STAR etc. ENERGY STAR included 80 PLUS requirements in new computers specification (2006). This is also why I continue to say that ATX power supplies are NOT SUFFICIENT and must be EPS12V 2.92 rated for modern Dell Machines.   This is also why certain 500W power supplies are NOT WORKING in systems that had DELL 305W units before because the 3.3v/5v rails as well as the +5VSB rails DO NOT HAVE ENOUGH POWER to work well if at all.

https://plugloadsolutions.com/80PlusPowerSupplies.aspx

http://www.smps.us/EPS12V_Spec2_92.pdf

https://plugloadsolutions.com/psu_reports/SP609_DELL_N875EF00_CUSTOM_875W_Report.pdf

Program Timeline and Milestones:

• Introduction of Titanium 80 PLUS label as most efficient specification within the Data Center (2011)
• Addition of Platinum 80PLUS label for the most efficient power supplies (2010)
• ENERGY STAR® v5.0 for Desktop Computers requires 80 PLUS Bronze and v1.0 for Servers requires 80PLUS Silver or better Power supplies (July 2009)
• Addition of Bronze, Silver, and Gold 80PLUS labels to distinguish among various levels of efficiency (2008)
• ENERGY STAR® Computer Specification (Version 4.0) goes into effect. The specification includes 80 PLUS power supply efficiency levels for desktop computers (July 20, 2007)
• Dell certifies 4 power supplies (Feb 2007)
• HP joins by certifying 80 PLUS power supplies (Nov 2006)
• ENERGY STAR include 80 PLUS requirements in new computer draft specification (2006)
• First market-ready power supply by Seasonic certified 80 PLUS (Feb 2005)
• Northwest Energy Efficiency Alliance becomes first sponsor (Fall 2004)

Thanks!