reliable, versatile, and fast enough

I now indulged myself for all my equipment this memory card or the predecessor. So I have on any device sufficient space for my stored in FLAC format music files and can still accommodate some other things to it. The card runs in a previously reliable Samsung S5, a Samsung Tab 4 8.0 SM-T335 and a FiiO X3.

The tempo when dubbing from the PC and back could be faster. But since you do not often make the usually, it is acceptable. The memory size outweighs this small disadvantage considerably.

A few test data I have attached a Transcend TS-RDF8K card reader:

CrystalDiskMark 3.0.2 x64 (C) 2007-2013 hiyohiyo
Crystal Dew World: [.....]
* MB / s = 1,000,000 bytes / sec [SATA / 300 = 300,000,000 bytes / s]

Sequential Read: 40 214 MB / s
Sequential Write: 13,657 MB / s
Random Read 512KB: 39 712 MB / s
512KB Random Write: 0.690 MB / s
4KB Random Read (QD = 1): 4,304 MB / s [1050.9 IOPS]
Random Write 4KB (QD = 1): 1,720 MB / s [420.0 IOPS]
4KB Random Read (QD = 32): 4,301 MB / s [1050.0 IOPS]
Random Write 4KB (QD = 32): 1,796 MB / s [438.5 IOPS]

Test: 1000 MB [R: 0.0% (0.0 / 119.1 GB)] (x5)
Date: 01/16/2015 13:59:08
OS: Windows 8 [6.2 Build 9200] (x64)