Question 1

Is this SSD brand new?

Accepted Answer

Hello there,

Thank you for contacting us with your question. The item is listed to be brand new. Normally, if the item was refurbished or open box it would be listed on the product page.

Thank you, 
Newegg Support

Question 2

What is the difference between this unit and the 850 pro?
Thank you,
Phil forman

Accepted Answer

These use a different controller than the consumer versions, (mercury) which for one, allows the unit to be maintained across more platforms ie windows and linux, via Samsung's Magician software. 
They also have tantalum capacitors for power loss protection.

Questions & Answers