All-in-One System Power Supply/ Peripherals Open Frame Monitor Industrial Computer Chassis Video Capture Solutions Industrial Computing Solutions PCIe/PCI PCIe/ PCI HPE-3S1 HPE-3S2 HPE-4S1 HPE-4S2 HPE-5S1 HPE-5S2 HPE-5S3 HPE-6S1 HPE-8S Total Slot 3 3 4 4 5 5 5 6 7 Expansion Slots PCI 2 1 3 2 4 3 2 4 4 PCIe x4 1 1 1 1 x1 2 2 Chassis N/A N/A PAC-42GH PAC-400G PAC-42GH PAC-400G PR-1500G RACK-500G PR-1500G RACK-500G PR-1500G RACK-500G N/A N/A PAC series wall-mount chassis 4U rack-mount chassis PICOe-BP1-2017-V10 0 12.98 24.56 41.07 56.97 68.68 0 9.82 41.2 128.83 140.48 180.01 189.99 HPE-3S1-R41 Ordering Information HPE-3S1-R41 3-slot backplane with two PCI slots HPE-3S2-R41 Ordering Information HPE-3S2-R41 3-slot backplane with one PCI slot and one PCIe x4 slot HPE-4S1-R41 Ordering Information HPE-4S1-R41 4-slot backplane with three PCI slots PAC-42GH 4-slot half-size compact chassis PAC-400G 4-slot half-size compact chassis Selection Guide