The Dell OptiPlex XE is a special version designed for equipment manufacturer, retail/ point-of-sale (POS) systems. [37] They are based on the standard OptiPlex models with added features; such as a higher heat threshold, MIL-STD 810G testing [38] and powered USB/Serial. Dell Optiplex 7020 Small Form Factor Owner's Manual" (PDF). dell.com. Dell . Retrieved 11 November 2019.

Only latest BIOS Supports Core 2 Quad and 8GB DDR2. USFF does not support 2GB/800 memory units. A 2 GB/800.USFF chassis was released separately and resembles the OptiPlex 9xx case and a maximum of 8 GB RAM due to 2 DIMM slots. Dell™ OptiPlex™ GX300 System User's Guide" (PDF). Archived (PDF) from the original on 29 October 2022. MT shares chassis with the Dell Dimension 4600, however two DIMMs, AGP and one SATA port have been omitted. Has a different front bezel Gigabit Ethernet, HDMI 1.4 (In & Out), DisplayPort 1.2, 2.0 MP 1080p Webcam, Optional 802.11ax, Up to GTX 1050 4 GB Oates, John. "Secret docs reveal Dell knew PCs were faulty". The Register. Archived from the original on 27 April 2021.

Dell™ OptiPlex™ XE Setup and Features Information" (PDF). Archived (PDF) from the original on 28 June 2017. Windows 11 requires TPM 2.0 and an 8th generation Intel or newer processor. Some models in Series 5 between 2015 and 2019 shipped with TPM 1.2, but are capable of meeting these requirements with a firmware upgrade to TPM 2.0 and the appropriate minimum CPU. [12]Hard drive retention: Hard drive retention is not available on models with a soldered hard drive, including XPS 9315 2in1, Chromebooks or Venue tablets, except the Venue 11 Pro.