Supports PCI-E 16x cards, but at 1x speed.
Ideal for adding extra graphics cards to systems when large compute power is required rather than gaming (eg rendering, cryptocurrency mining).
1x Connector for motherboard,
16x board for graphics, (128 x 43 x 20mm)
USB cable to join the two PCI-E slots,
PCI-E to SATA power adapter.
Riser requires 6-pin PCI-E power to operate, but can use the SATA adapter if the power supply does not have enough PCI-E connectors. Graphics card will still need its own power connectors in addition.
To avoid overloading power, it's recommended that cards are set to a lower power target (eg 75-90%) - do not exceed the standard 100% power target when not connected directly to the motherboard, extreme overclocks may draw too much power and cause damage.