The HP 18E7 uses a in the SFF chassis (similar to HP’s 4-pin P5 connector). The Microtower version uses a standard 24-pin ATX.
| Slot | Type | Physical Length | Electrical Lanes | SFF Chassis | MT Chassis | | :--- | :--- | :--- | :--- | :--- | :--- | | Slot 1 | PCIe x16 | x16 | x16 (3.0) | Yes (low-profile) | Yes (full-height) | | Slot 2 | PCIe x4 | x16 | x4 (3.0) | Yes (low-profile) | Yes | | Slot 3 | PCIe x1 | x1 | x1 (3.0) | No | Yes | hp 18e7 motherboard specs
The HP 18E7 is a proprietary motherboard designed exclusively for HP’s commercial desktop lineup, primarily the and Microtower (MT) models. It is not a retail board; you cannot buy it off the shelf at Newegg or Amazon. It is an OEM (Original Equipment Manufacturer) part built to HP’s strict power, thermal, and reliability standards for business environments. The HP 18E7 uses a in the SFF