The nVidia Quadro K420 card is available for both the Precision 3420 and 3620.
Contour Rollermouse free3 (ergonomic and glove safe)
A good option for those who have trouble with standard sized mice, the rollermouse free3 features a large bar than can easily be moved with either hand.
Large physical keys instead of small embedded mouse buttons mean you can easily use it while wearing thick gloves. Perfect for the post COVID-19 world.
In use by several staff members with arthritis who need to switch off which hand they use regularly.
Pictured below with their large key keyboard (also ergonomic and glove safe)