This product is either discontinued or we cannot get that from suppliers.
ERGOTRON 97-853 SV Envelope Drawer, Capacity Up to 2 lbs, Compatible only with SV43/44 series carts, Internal Dimensions: 10"H x 12"W x 10.5"D, Includes envelope drawer, divider, keys, mounting hardware, travel stop, GREY/WHITE
Add this drawer to a StyleView cart for convenient access to envelopes. Installs to the front of the cart, under the primary drawer. This drawer works in conjunction with the cart’s electronic auto-locking drawer system.