AT Controller Performance 386/33 ST278R/ST251 KB/Sec
1.02 20210524

            1:1 2:1 3:1 4:1
ST21R	    600 300 239 171 RLL
DTC7287     602 301 239 171 RLL
WD1003V-SR1  30 301 239 172 RLL
WD1006V-SR2 602 301 242 172 RLL
ACB-2370A   602 301 242 169 RLL
OMTI-8247   582 301 239 171 RLL

ST21M       397 239 149 119 MFM
SMS8240     400 198 130 119 MFM
NCD5525      30 239 149 120 MFM
AMS1100M4   397 239 150 119 MFM AIC-6060 (2nd source CL-SH260) WD_1006 fmt