  We propose a lattice formulation of three dimensional super Yang-Mills model
with a twisted N=4 supersymmetry. The extended supersymmetry algebra of all the
eight supercharges is fully and exactly realized on the lattice with a modified
"Leibniz rule". The formulation we employ here is a three dimensional extension
of manifestly gauge covariant method which was developed in our previous
proposal of Dirac-Kaehler twisted N=2 super Yang-Mills on two dimensional
lattice. The twisted N=4 supersymmetry algebra is geometrically realized on a
three dimensional lattice with link supercharges and the use of "shifted"
(anti-)commutators. A possible solution to the recent critiques on the link
formulation will be discussed.
