Somebody cannot distinguish between R1 and R2 when dealing with T3000. The FRU part and BOM number of them are different. It may cause parts do not match with host, if we cannot distinguish them.
Distinguish them by the front view:
1. Only T3500 of T3000V1R1 is 4U device, as picture 1.
2. In T3000V1R2, T3200 is 2U device, as picture 2, T3500G2 is 4U device, as picture 3. The difference between T3500 and t3500G2 is there is a board between the disks of T3500G2, as the red part of picture 3.
Pictures are in accessory.
T3000V1R1 is very similar to T3000V1R2 in surface.