The SD Card 4.0 specification currently under development will unleash the full potential of SDXC, which can support capacities as large as 2TB.

而SD卡4.0规范则目前还在制定之中，这种规范可以很好地发挥SDXC的性能，而且支持的最大闪存卡容量还可以提升到2TB。

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It has Compact Flash (CF) and Secure Digital (SD) slots and can support non-storage devices such as an 802.11b wireless CF card or an Ethernet adapter.

它还有CF (Compact Flash)和SD (Secure Digital)插槽，可以支持非存储设备，例如802.11 b无线cf卡或以太网适配器。

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NOTE: it is mandatory for a Writable SD Card to support Security Protocol.

注意：它是可写的SD卡强制性支持的安全协议。

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But the format has a lot of momentum behind it: There are already 50 products on the market that support the SD card format--from digital cameras to music players to PC drives--and there are 275 member companies in the Secure Digital Association who are actively promoting it as the next standard for removable storage.

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And whenever the recording industry gets around to implementing its Secure Digital Music Initiative, the SD card, which stands for "secure digital, " will support it.

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There's a full-size SD card reader and a standard 3.5mm headphone jack (with mic support) on the left, plus the power input, HDMI output, USB 2.0 port, USB 3.0 connector and SIM slot (currently unused) in back.

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