SATA3.0 1 to 5 Hub Ports SATA Port Splitter Swith Multiplier Card Motherboard 6Gbps Riser Card SATA 3.0 Expansion Card Support PM JMICRON JMB575

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Your box's power supply should provide SATA-power feeds. If you need to use a Y-adaptor cable to split-out power for these extra SATA drives, try to budget for splitting from SATA-power. Otherwise, a Y-cable splitting out from ancient 4-pin-Molex -to- SATA drive power is adequate and cheapest. One solution to this, would be to use a Sata Host Bus Adapter, which will expand your possible number of drives. There are many types of these, ranging from 2 ports upwards 16 on a single 8 lane card. I disabled passthrough on the controllers and converted the drives to physical RDM. The VM found the disks/pool on boot and it has been running as expected since.

This expansion card has an x4 connector but only utilizes 2 PCIe lanes (according to its specifications). Hence given that it conforms to PCIe v3.0, it can reach speeds of about 2000 MB/s (theoretical); 1700 MB/s (typical). However, if you doesnt want to open your PC, then you can use external drives by using SATA to USB adapter cables. Wrapping UpAdding more SATA ports on the motherboard is not difficult; you can do it yourself in a couple of ways. SATA PCIe Cards An average solid-state drive has more than twice the speed of an average hard drive. While hard drives provide about 200MB/s, an average solid-state drive offers up to 550MB/s.

Support would be subject to the expansion card's SATA controller, not the motherboard's SATA controller, any limitation of the motherboard's SATA controller would not be applicable to the expansion card. Aiming to mostly replicate the build from @Stux (with some mods, hopefully around about as good as that link) A hard drive's deepest power draw is at spin-up; modern drives hardly take much juice at all any more; don't worry about your power supply if adding only two or four more drives. The last important factor to consider when choosing a SATA expansion card for additional SATA ports is whether you want one with a built-in hardware RAID controller or not. SATA expansion cards with RAID controllers tend to be expensive than those without them. They also use more bandwidth and are often utilized by professionals and NAS builders. Conclusion

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Some (other) mbrds offer an x4 slot; a tad longer than x1. An x4 slot can handle 8 additional drives, using a HBA-type pci-E card. In the last year or two, we've had a resurgence of users asking about SATA Port Multipliers and cheap SATA controllers.

Edit: Nope, it actually does not work. I cannot find a reason, why. The ASM1061 supports PM, but does not state if CBS or FBS. Also it does not list any compatible hardware. It works with ASM1093 at least - which the card uses. I also tested, to hook the JMB321 to the one SATA Port, which does not go through the ASM1093 Port Multiplier. It yet does not work at all. I do not know, how to fix this issue. It seems, that the PM market ist crappy as hell. Very limited and totally unpredictable compatibility over all hardware...So my idea is to use a M.2 Key M to PCIe x4 Adapter and connect a PCIE SATA Card with something like 16 or 20 ports. That would give enough room to grow over time. This is another method of increasing the SATA port on our motherboard, and these cards offer excellent upstream & downstream bandwidth.

If selecting a HBA card, you need to be aware of the two different modes. You want to have your HBA card in Initiator Target Mode (IT), which basically says that the card will passthru any drives and present them to the operating system directly (no raid hardware used), this is beneficial because the firmware usually is faster, and you get more control over the individual drives in software (your operating system/disk software will handle the drives). Moreover, having a "dumb" controller like this, you ensure that the software you use will see everything the drives are doing. A SATA2.0 (3Gbit/s) PCI Express ×1 expansion card, having two built-in SATA port multipliers (square chips to the left and right of the middle of PCB) that "splice" card chipset's two SATA ports into a total of eight ports.

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Linux/BSD: Generally good support. Try to find out whose SATA controller ASIC ("chip") is being integrated in candidate card, and which model chip, then (example) search: Linux support LSI Each of these lanes is designed to offer a specific amount of transfer speed, otherwise known as the throughput rate, depending on the card’s version. For instance, a single-lane version 3.0 expansion card will provide up to 985MB/s while a single lane version 2.0 card offers 500MB/s. SATA PCIe is a kind of extension card that we can install on the motherboard’s PCIe slots to install multiple SATA drives (Hard Drive, SSD, Optical drives, and other SATA devices). That is what I will probably test out next, since I want to run a NAS where I can attach more disks in the long run. That route might be even more stable since I read sometimes that those cheaper port multipliers like ADP6ST0-J05 can have problems. Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx+