Ergotron LX Dual Monitor Arm

Pros

• +Independent per-arm articulation — each monitor repositions separately
• +Constant Force gas-spring on both arms holds position without drift
• +Same 10-year Ergotron warranty as the single LX
• +Cable management through both arms and crossbar
• +r/battlestations dual-monitor consensus pick

Cons

• −27-inch monitor maximum limits ultrawide and 32"+ 4K users
• −20-lb per-arm limit requires weight verification for heavier panels
• −$440 is a significant investment — nearly 2.5x the single LX
• −Matte black only on this ASIN — aluminum and white are higher-priced variants