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。
The SD Card 4.0 specification currently under development will unleash the full potential of SDXC, which can support capacities as large as 2TB.
它比具有类似容量的闪存卡甲虫贵吗？
Is it more expensive than a CompactFlash Beetle of similar capacity?
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