What is the storage capacity of the HP 507284-001 internal hard drive?

The storage capacity of the HP 507284-001 internal hard drive is 300 GB.

is this new or refurbished?

Hello, Thank you for contacting us with your question. The item is brand new. It will come closed in the original retail package with manufacturer seal. Normally, if the item was refurbished or open box it would be listed on the product page. Thank you, Newegg Support