"both equipped with" is a grammatically correct and usable phrase in written English.
You can use it when talking about two things that have something in common, e.g. "Both cars were equipped with air conditioning."
Inside, near a painting of the Virgin Mary, were two bedrooms that she sublet, both equipped with locks.
The probe resistor and the QCR are both equipped with an additional pair of current-biased NIS junctions.
Syria has given Hezbollah 220-millimeter and 302-millimeter missiles, both equipped with large, anti-personnel warheads.
They're both equipped with black-and-white counter-top TV's offering 15 minutes' viewing for 25 cents.
Airports were said to have been completed at Gilgit and Chitral, both equipped with United States radar.
With two classrooms available, both equipped with digital projectors, the library is ideally suited to support small classes and seminars.
This is particularly pressing now since Venezuela and Australia, both equipped with earlier Mirage models, recently announced their intention to buy U.S. planes, Venezuela F16s and Australia F18s.
The twin satellites GRACE-A and GRACE-B are both equipped with a three-axis electrostatic accelerometer, measuring the non-gravitational forces acting on the spacecraft.
Computational fluid dynamics (CFD) is used to develop Eulerian/Lagrangian models of two wave-plate mist eliminators, both equipped with drainage channels.
The LG phones, available at www.verizonwireless.com, are both equipped with more than two dozen different ring tones, making it easier to keep your co-workers guessing whose phone is ringing.
