Buvau sujungęs su prie mamos buvusiais laidukais, padariau testą, buvo tokie 
rezultatai:

Sequential Read (Q= 32,T= 1) :    98.804 MB/s
  Sequential Write (Q= 32,T= 1) :    78.620 MB/s
  Random Read 4KiB (Q= 32,T= 1) :     0.732 MB/s [   178.7 IOPS]
Random Write 4KiB (Q= 32,T= 1) :     0.958 MB/s [   233.9 IOPS]
         Sequential Read (T= 1) :    52.221 MB/s
        Sequential Write (T= 1) :    60.818 MB/s
   Random Read 4KiB (Q= 1,T= 1) :     0.167 MB/s [    40.8 IOPS]
  Random Write 4KiB (Q= 1,T= 1) :     0.781 MB/s [   190.7 IOPS]

  Test : 1024 MiB [D: 96.9% (2707.6/2794.4 GiB)] (x5)  [Interval=5 sec]
  Date : 2017/10/17 17:32:41

Nupirkau trumpesnius laidukus, padariau testą, rezultatas kitoks:

Sequential Read (Q= 32,T= 1) :   100.450 MB/s
  Sequential Write (Q= 32,T= 1) :    94.914 MB/s
  Random Read 4KiB (Q= 32,T= 1) :     0.721 MB/s [   176.0 IOPS]
Random Write 4KiB (Q= 32,T= 1) :     0.993 MB/s [   242.4 IOPS]
         Sequential Read (T= 1) :    89.765 MB/s
        Sequential Write (T= 1) :   101.506 MB/s
   Random Read 4KiB (Q= 1,T= 1) :     0.278 MB/s [    67.9 IOPS]
  Random Write 4KiB (Q= 1,T= 1) :     1.029 MB/s [   251.2 IOPS]

  Test : 1024 MiB [D: 97.0% (2709.9/2794.4 GiB)] (x5)  [Interval=5 sec]
  Date : 2017/10/23 13:48:52

Matau tik, kad Random Read 4KiB sumažėjo, o visi kiti padidėjo.
Laidai turi įtakos?