16 disk slots for 3.5" disk
A very neat design where there are 2 more disk slots for 2.5" disk at the back. The board also has 2 10GBase-T ports.
With Cover and fans, support 2 CPUs and 16 DIMMs
1 x PCIe 3.0 x16 (Occupied by the LSI card) and 6 x PCIe 3.0 x8. Also can see the 8 SATA2 ports and 2 SATA3 ports. The board also contain 2 SFF 8087 ports for 8 more SAS2 connections.
Backplane model: BPN-SAS2-836EL1. This is a backplane with expander chip. With only 1 SFF 8087 cable, you can access all the disks. Is an oversubscribe solution but should have more than enough bandwidth (2400MB/s) for fully populate disks (except maybe will face congestion with 6 or more SSDs).