Summary: Although I have recently purchased an HP z420 workstation, I have not purchased the product in this listing. I would warn potential buyers that the listing states (7.13) that the system includes a Tesla C2075 co-processor as graphics card.
Knowing what I know now , I would not buy this product
Omar M Abdi, Amazon
12 January 2013
Summary: I bought this workstation for my small business not realizing the it does not come with a graphics card. I would not have it bought for that reason alone because of the inconvenience and downtime involved in getting a graphics card from a third party.
Summary: Today I received my order for this product. It was listed as 16 GB RAM, 1TB hard drive. What I got from J&R was 4GB of RAm and 500 GB harddrive. I am afraid to look any deeper. I don't think J&R is very reputable. I'll let you know how it goes with customer service (not holding my breadth)