14 PowerEdge C6220 Technical Guide     
Figure 7.  2U sled — side view 
 
Figure 8.  2U sled — back view 
 
Table 5.  PowerEdge C6220 1U and 2U sled features and comparisons 
 
The PowerEdge C6220 chassis is available with multiple drive size and backplane options. The base 
chassis remains the same, but installed backplanes determine drive size and capability. The number 
of drives per sled depends on the number of compute sleds installed as well as the backplane 
selected.  
For additional information on PowerEdge C6220 backplanes, see the 
Dell PowerEdge C6220 
Systems Hardware Owner’s Manual
 on Dell.com/Support/Manuals. 
1 rack unit (1.75 inches) 
2 rack units (3.5 inches) 
Maximum number of 
sleds in a C6000 chassis 
1 x16 PCIe 2.0, low profile, half length 
1 x16 PCIe 2.0, full height, half-length 
1 x16 PCIe 2.0, full height, full length 
1 midplane connection:  
power, control, 6 SATA/SAS 
2 midplane connections: 
bottom = power, control, 4 SATA/SAS 
top = 4 SATA/SAS