I have used many pendrives like sandisk cruzer, sony transcend but transcend pendrives are good enough to compete with pendrives of sony, sandisk etc.i bought it from a electronic store .initially, the speed of transfer of data was good but after few months its data transfer speed started decreasing . I bought a 16gb storage pendrive for my desktop.it was black in color and a blue colored light lighten up when put inside the usb slot. after 9 months, my pendrives corrupted.
I was in shock because before this transcend pendrive I had a sandisk cruzer pendrivers lasted for 2 years and I gave it mto my cousin.this pendrive has slow read and write speed of data transfer.so atlast I will recommend you not to buy the transcend pendrives because I am regreting after buying the pendrive.