This machine has the following upgrades:

512GB SSD SATA SSD (blue SATA bay tray in photo)  SSD is in good health.  It is a Samsung PRO SSD.

USB 3.0 expansion card (card above video card in photo)

Other than the upgrades the machine is stock: 16GB ECC RAM, 3.2 GHz quad core Intel Xenon, Radeon 5770 1GB, DVDRW, Bluetooth, Firewire 800, USB 2, Dual Intel Ethernet, Optical Audio I/O, Wi-Fi, High Sierra.

Overall Condition: Good > Very Good.  Only scratches to case which do not affect function (see photos).

For more information see photos, I have included screen shots of the relevant specifications.

I will install a clean copy of High Sierra upon sale with payment.

Due to the weight and size of this I am only offering local pickup.