Amazon.com: 2 Port M.2 SSD to PCI-e x1 adapter B or B+M key (SI-PEX40115) : Electronics
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eSATA / SATA PCIe SATA Controller Card - SATA Controller Cards | Add-on Cards & Peripherals | StarTech.com
Download and install JMicron Technology Corp. JMicron PCI Express Gigabit Ethernet Adapter - driver id 1297285
firewire sata | Newegg.com
JMicron PCI Express Gigabit Ethernet Adapter v.6.0.33.3 download for Windows - deviceinbox.com
StarTech.com 1 Port Flush Mount ExpressCard SuperSpeed USB 3.0 Card Adapter with UASP Support Add a USB 3.0 port connection that inserts flush into a laptop ExpressCard slot slim usb 3.0 expresscard - Office Depot
Atomic Pi Adventures, Episode 1: Adding external PCI Express expansion by removing onboard Ethernet | Rip It Apart - Jason's electronics blog-thingy