The PowerEdge R740 was designed to accelerate application performance leveraging accelerator cards and storage scalability.

Up to two Intel® Xeon® Scalable processors, up to 28 cores per processor
"24 DDR4 DIMM slots, Supports RDIMM /LRDIMM, speeds up to 2666MT/s, 3TB max Up to 12 NVDIMM, 192 GB Max Supports registered ECC DDR4 DIMMs only"
"Internal controllers: PERC H330, H730p, H740p, Software RAID (SWRAID) S140
Boot Optimized Storage Subsystem: HWRAID 2 x M.2 SSDs 120GB, 240 GB
External PERC (RAID): H840 12Gbps SAS HBAs (non-RAID): External- 12 Gbps SAS HBA (non-RAID), Internal- HBA330 (non-RAID)"
"Up to three 300W or six 150W GPUs,
or up to four FPGAs.
Nvidia Tesla P100, K80, K40, Grid M60, M10,
P4, Quadro P4000, NVIDIA V100,
or Intel Arria® 10GX FPGA"
I/O Ports:
"Network daughter card options
4 x 1GE or 2 x 10GE + 2 x 1GE or 4 x 10GE or 2 x 25GE
Front ports: Video, 2 x USB 2.0, available USB 3.0, dedicated IDRAC Direct Micro-USB
Rear ports: Video, serial, 2 x USB 3.0, dedicated iDRAC network port
Video card: VGA Riser options with up to 8 PCIe Gen 3 slots, maximum of 4 x 16 slots"