The new direct solder type PCI Express x1 x16 and PCI flexible riser from HDPLEX support both right angle and left angle.
When using left angle, the expansion card component side is facing down towards the motherboard/case bottom plate. If use right angle, the component side will face up to the PC case top plate.
PCIE x1 Flexible riser card retail for 9USD. PCI and PCIE x16 retail for 15USD.