Is 7010's PCIe x16 slot only Gen ? Can I upgrade to ?

Is 7010's PCIe x16 slot only Gen ? Can I upgrade to ? pcle x16 slot Pcie x16 slot into multiple x4 slots · PCIE Bifurcation · IBM 69Y5321 M4 PCIe Gen-III Riser Card 2 · Cablem ATIC pcle x1 slot Product Overview · This PCIe x1 to PCIe x16 Slot Extension adapter provides enhanced compatibility between motherboards and a variety of PCI-Express expansion

pcle x1 slot Slot power ; x1 cards are limited to A at +12 V and 10 W combined ; x4 and wider cards are limited to A at +12 V and 25 W combined ; A full-

pcle slot Slot Cars · Puzzles · RC Model Vehicles, Toys & Control Line · Collectible Card AMD Radeon RX 550 4GB 128-Bit GDDR5 PCIe Low Profile Video Card GPU  PCIe x16: This is the largest PCIe slot with 16 data lanes PCIe x16 slots are associated with graphics cards and provide the highest bandwidth