But since the MultiDock 10G uses SATA 3 (6 Gbps) based connections to the actual drives themselves, the maximum throughput possible to a single drive is even lower, usually around 500 MB/s maximum after accounting for SATA interface overhead (and could be less depending on the drive). USB 3.1 Gen 2 bus speeds are 10 Gbps (1250 MB/s) at the interface level, but due to overhead and other issues, real world maximum performance you can expect at the port level is around 900 MB/s or so. Sometimes this is due to connection related issues and disconnecting and reconnecting the cable improves things.Įven with USB 3.1 Gen 2 speeds, things are never going to be as fast through the MultiDock 10G as with the internal SSD. By minimizing the time spent swapping external drives, Blackmagic MultiDock allows you more time to focus on your creative work. I've also seen situations where USB 3 capable ports don't always negotiate USB 3 speeds (even when using a USB 3 compatible cable). Blackmagic MultiDock and Blackmagic MultiDock 10G are perfect for video post production tasks such as editing, color grading, or any task that requires large video files to be stored on multiple drives. For example, a lot of USB-C cables designed for charging purposes only support USB 2.0 data speeds as they lack the additional data wires internally to support USB 3 data transfers. Usually the causes of this are some kind of cable or port issue. Although USB 2.0 has a maximum interface bandwidth of 480 Mbps (60 MB/s), due to interface overhead (and a few other factors), have real world transfer speeds in the range of 35 to 40 MB/s, which seems to be inline with what you are seeing. It sounds like the MultiDock 10G is only connected to the computer using USB 2.0 speeds (480 Mbps) rather than USB 3.1 Gen 2 speeds (10 Gbps).
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