ErGear Direct via Amazon has for Prime Members: ErGear Fully Adjustable Dual Monitor Stand (for 13″-32″ Monitors) for $29.99 – $1.50 auto-applied during checkout – $15 when you apply promotion code PNBZ38AF at checkout = $13.49. Shipping is free.

Features:

• This dual monitor mount can hold two 13″ to 32″ computer screens weighing up to 17.6lb each. Compatible with 75 x 75mm and 100 x 100mm VESA mounting patterns. Hardware is included for both C-clamp mounting on desks 0.39″ to 3.15″ thick and grommet mounting on desks 0.39″ to 2.17″ thick
• The dual monitor desk mount has highly adjustable arms with ±45° tilt, ±90° swivel, and 360° rotation for a wide range of screen positions and combinations.