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Schermo MacBook Pro con antiriflesso rovinato, Apple lo sostituirà gratis il problema su aree molto ampie, in alcuni casi persino su tutto il display. ed ora Cupertino ha esteso ulteriormete la copertura per alcuni Mac Plus, un programma di sostituzione del tasto Standby/Riattiva di iPhone 5.

Thankfully, USB 3 is designed to be backwards-compatible. In practice, that has worked well with most general-purpose peripherals, but some users of older USB audio interfaces have experienced unexpected problems when trying to connect via USB 3 ports. The USB 3 standard is certainly mature enough at this point that any new interface you purchase in future should already have any such problems ironed out.

While USB 3 does offer some advantages, there are several good reasons for the apparently slow progress. The USB 2 specification states that it has the ability to transmit data at up to Mbps, but due to bus constraints, the way the data is handled, and designers leaving headroom to ensure the best possible results in day-to-day use, even a well-designed USB 2 interface is likely to have a throughput closer to Mbps.


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Yet there are some companies who squeeze far higher channel counts from their USB 2 audio interfaces by building their own USB controllers. These tend to be among the more costly options, due to the extra work and design choices that go into developing and optimising this sort of solution.

This is made possible by the use of the MADI protocol for handling the data transmission, which is far more efficient than the native audio-over-USB standard.


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Many manufacturers of USB 2 interfaces also cater for higher sample rates, including 96, and kHz, but these eat into the USB bandwidth: every time you double the sample rate, you double the amount of data. After all, how many of us can hear a difference between 96kHz and kHz recordings? The on-paper bandwidth of several different protocols appears similar, but in practice the bandwidth is more restricted than these figures show, particularly for variations on the USB protocol.

According to the specifications, USB 3. In practice, it tends to be closer to 3. Manufacturers are beginning to take advantage of the better capability of USB 3. This looks like being good news for those who either want to hook up lots of outboard or run large recording sessions, but who are unhappy with recording at An even newer USB 3. This offers the features of Gen 1 but doubles the speed, increasing the theoretical throughput to 10Gbps, as well as improving data encoding to reduce the overheads.

We can expect real-world connections to offer bandwidth in excess of 7Gbps, which is more than double that of USB 3. As before, there is a variety of physical connectors for the new standards, which can make things confusing.

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Just to confuse things further, Asus, who have 3. This should, in theory, allow manufacturers to develop better bus-powered interfaces, either with more facilities or more channels of the same. Firewire IEEE has never reached quite the same level of adoption on Windows PCs as on the Apple platform, and direct support on motherboards has tailed off almost completely in recent years, meaning that users of Firewire interfaces acquiring a new desktop machine have to fit a third-party card.

When it comes to bandwidth, the first-generation Firewire standard IEEE a is slightly worse Mbps on paper than USB 2, but in practice it holds several advantages. All these factors made Firewire the preferred connection standard in larger studios for a long time.


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  6. The performance gap has decreased in recent years, though, and in some cases, high-end USB 3 interfaces have managed lower latencies than Firewire ones. Apple users have experienced less frustration, simply because they build a small number of standard models, using common components, and most manufacturers will have made the effort to test their interfaces with most Mac models. For this reason, many manufacturers keep FAQ pages on their web sites detailing pre-tested Firewire cards for each of their interface models. A more recent standard is Thunderbolt, which has already become well established on the Apple Mac platform, thanks to their early adoption.

    USB 3.0 Video Display Adapter

    It has continued slowly, to date to make inroads with the Windows PC market — a number of motherboards now support it, either directly, with a port on the motherboard, or via an add-in card. While this sounds straightforward, though, the add-in cards currently have to be supported at BIOS level, and this normally requires a dedicated header to take the card; you cannot just add in a third-party Thunderbolt card in the same way you would a Firewire card.

    In the last year, a newer Thunderbolt 2 standard has arrived — it was required to facilitate 4k video streaming and capture, among other high-bandwidth applications. It offers the same 20Gbps as Thunderbolt 1 but does so over a single channel, whereas Thunderbolt 1 delivered 10Gbps on each of two channels.

    NewerTech® : Video

    Information about products not manufactured by Apple, or independent websites not controlled or tested by Apple, is provided without recommendation or endorsement. Apple assumes no responsibility with regard to the selection, performance, or use of third-party websites or products. Apple makes no representations regarding third-party website accuracy or reliability. Risks are inherent in the use of the Internet.

    Contact the vendor for additional information. Other company and product names may be trademarks of their respective owners. Turn on the HDMI device. Press Shift-Command-A to open the Applications folder. Then double-click System Preferences, then click Displays. If you're connecting from a Mac mini, unplug any audio device that is plugged into your computer's Audio-Out port.