Splits upstream x4 / x8 / x16 PCI Express bus into up to 4 downstream x1 / x4 / x16 PCI Express buses The wires aren't the problem, it's the pins. SATA is rated for 1.5a per pin, so 3 x 12v = 54w (PCIe max slot power is 75w). Per pin amperage for a 4-pin Molex is 8.5a, so you can get 102w from it's +12v pin. I've seen both 11a and 13a for PCIe pins so 3x 12v = 396-468w

PCI-E 6 Pin to Dual 8(6+2) Pin Splitter Power Cable, 6 Pin

Riser in fixed or flexbile w/various cable length. PCIe 3.0 Gen3 compatible. Use trifurcated riser ARC2-435 to split from one x16 lane to three PCIe lanes (x8,x4,x4). Having more PCIe slots means getting the opportunity to install more expansion cards for various uses. However, there are only two ways to increase the amount of PCIe slots you have: Fine you want the PSU tier list? Have the PSU tier list: https://linustechtips.com/main/topic/1116640-psu-tier-list-40-rev-103/ Anouther problem is sli support. You normally need a certifed board to use sli, so this might not work at all with sli.so the question remains, should you get a "quality" y splitter and split a single 8pin into two 8pin or just hunt for a power supply that has enough connectors to meet the needs of your gpus? it can get crazy if you are building an 8-gpu rig and each gpu requires two 8pin connectors meaning you need sixteen 8pin connectors, yikes! The x1 PCI Express adapter board has mounting holes for its mechanical fixation inside the computer chassis (embedded computer), and support tabs for mechanical stabilization of the add-in PCI Express expansion board (US Patent 7,255,570). I don't care that much about graphics bandwidth and I'd like to add USB 3.0 support. It's a waste to be using 16 lanes of pci bandwidth for a graphics card I hardly use, and I've found some convenient front panel usb 3.0 cards that only need a 1x pci slot. Do you think a 4 card splitter installed in the 1x slot or 16x will make the 2 cards work? or should I go for another MOBO? Reply There are many types of PCIe splitters, and they come in many configurations. The splitter above is an external PCIe splitter.

pci-e x16 slot for multple cards? - Super User Can I use a pci-e x16 slot for multple cards? - Super User

This splitter connects to x1 slot on the board and then splits into four x1 slots for further expansion. So basically, the idea here is that the amount of bandwidth the cards occupy on the splitters should not be greater than the bandwidth provided by the primary x1 host slot connected to the motherboard. A graphics card that didn't take up the whole x16 slot might be acceptable if it's possible to use the last channel at the same time for a 1x riser or something, don't know if that's allowed. Before deciding to add more PCIe slots to your computer, you should consider the purpose of your computer and what devices you plan to use with the additional slots.So you cannot install four graphics cards on these and expect all of them to perform optimally for gaming. The performance will not even be close to optimal. Each graphics card is designed to use 16 PCIe lanes! They aren’t intended to be used on x4 slots for gaming, let alone on the 4-way split. I think where most people get into trouble is when they start using SATA power cables to power either risers or GPU's directly, especially if they do more than 2 connections per SATA "string". The Splitter includes four x1 (or x4, or x16) PCI Express adapter boards with PCI Express flat ”ribbon” cables, and one x4 PCI Express host board. Do I simply get the standard rizers and plug in to a PCIe USB splitter or does the mining splitter come with the required risers? I don't seem to find any PCIe expansion solution that expands a single PCIe3x16 slot to multiple such slots, that also supports graphic cards.