Dell t5400 service manual
First Precision with a msata slot.
"Dell PRO1X docking station compatibility with Precision M90".
"Dell Precision 7730 Setup and specifications guide".
Memory Graphics USB Precision 7920 Rack 69 2017 Dual LGA 3647 Xeon Scalable Processor family, up to 28-cores UPI Intel C621 DDR4 ECC rdimm (Quad Channel).5/3.0 TB Up to 3x PCI-E x16 Gen 3, up to 900 W USB.1 Precision Rack Dual LGA 2011 Xeon.