Start Your Engines: PCI Express 4.0 Standard Officially Released | Extremetech
Intel Wireless-N 7260 WLAN WiFi 802.11 a/b/g/n + Bluetooth 4.0 Half-Height Mini-PCI Express Card for sale online | eBay
Intel Optane SSD 900p Makes a Secret Appearance - has PCI Express 4.0 interface
Wireless Dual Band Wifi Intel 7260 7260HMW 7260AC 2X2 Mini PCI-E Bluetooth 4.0 Wi-Fi Network Card Antennas, Up to 867Mbps (5Ghz) + 300Mbps (2.4Ghz), IEEE802.11ac/a/b/g/n, Windows 7/8/10 For Laptop PC - Newegg.com
PCIe 4.0: Everything you need to know, from specs to compatibility to caveats | PCWorld
Intel Arc A750 Limited Edition 8GB GDDR6 PCI Express 4.0 Graphics Card Black 21P02J00BA - Best Buy
Intel Optane SSD 900p Makes a Secret Appearance - has PCI Express 4.0 interface
Intel E810-CAM2 Based Ethernet Network Interface Card, 100G Dual-Port QSFP28, PCIe 4.0 x 16, Comparable to Intel E810-CQDA2, Tall&Short Bracket - FS.com Europe
Z490 Motherboards PCIe Gen 4 Support Detailed: MSI, Gigabyte & ASRock Lead While ASUS Falls Behind
GALAXY New Intel H610M GAMING Motherboard Game DDR4 M.2 SATA PCI 4.0 64GB Motherboard Supports Intel CPU Processor Placa Mae From Liuzedong7777, $143.32 | DHgate.Com