Ergotron LX Option Flex Pro

Ergotron's current product documents list LX Pro Desk Arm, Dual Stacking, Dual Direct, Dual Side-by-Side, and wall variants, but they do not clearly identify a model called Option Flex Pro. Ask for the exact Ergotron SKU because the name may combine an LX Pro arm with an accessory option. [Ergotron LX Pro specifications](https://media.ergotron.com/reserved/resources/specs-lx-pro-series-ea-orig.pdf)

Yes, the LX Pro range includes dual-monitor versions, but the load limit depends on whether the arm is Dual Stacking, Dual Direct, or Dual Side-by-Side. Ergotron lists VESA 75 x 75 mm and 100 x 100 mm mounting patterns and a dual-arm range up to 44 lb total. [Ergotron LX Pro specifications](https://media.ergotron.com/reserved/resources/specs-lx-pro-series-ea-orig.pdf)

It uses Ergotron Constant Force technology to provide smooth movement through the monitor's lift, tilt, and pan range. The published LX Pro range lists up to 13 inches of lift, but the exact movement depends on the selected arm configuration.

Ergotron publishes LX Pro SKUs for two-piece clamps, grommet mounts, and other mounting setups, so the included base is not the same across the range. For example, the specification sheet identifies 45-690 variants as Dual Stacking and separate 45-710 variants for grommet mounting. [Ergotron LX Pro specifications](https://media.ergotron.com/reserved/resources/specs-lx-pro-series-ea-orig.pdf)