Use a CAT5e UTP or STP Cable Economiser/Doubler to link two ports on a hub to a single 8-core (4-pair) CAT5e UTP or STP wallplate. Then use one at the other end to split the signal to two workstations.
Approvals — RoHS Connnectors—
(2) 8-position RJ-45 female
(1) 8-position male Construction — Housing: black plastic Performance — CAT5e, 10/100-Mbps Conductor O.D. Range — 24–26 AWG Dimensions — Shipping: 19L x 7W x 2.5D cm (7.5"L x 2.75"W x 1"D) Weight — Shipping: 0.43 kg (0.94 lbs.)