19" IPC | |  mounting |  free slots |  from outside accessible drives |  backplane |  measurement | 
 WEB-1/PCI | 19" desktop | 2 x PCI | 1 x 3.5" 1 x 5.25" | 3-slot | 1 U, 450 mm | 
 WEB-2/PCI | 19" desktop | 5 x ISA/PCI | 1 x 3.5" 1 x 5.25" | 6-slot | 2 U, 488 mm | 
 IPC-B | 19" | up to 13 x ISA/PCI | 1 x 3.5" 1 x 5.25" | 14-slot/ATX | 4 U, 430 mm, optional 370 mm | 
 IPC-ECO | 19" desktop | 13 x ISA/PCI | 1 x 3.5" 1 x 5.25" | 14-slot/ATX | 4 U, 450 mm | 
 IPC-S | 19" mounting | up to 13 x ISA/PCI | 1 x 3.5" 4 x 5.25" | 14-slot/ATX | 5 U, 480 mm | 
 IPC-6022 | 19" | up to 13 x ISA/PCI | 1 x 3.5" 1 x 5.25" | 14-slot/ATX | 5 U, 472 mm | 
 IPC-3035 | 19" desktop | up to 19 x ISA/PCI | 2 x 3.5" 4 x 5.25" | 20-slot | 7 U, 503 mm |

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