fastrack

基本解释

Its My Net line of dual-band routers — a complement to its other media devices, set-top boxes and networked drives — features proprietary FasTrack software to prioritize entertainment traffic and better deliver seamless high-definition videos, games and video chat.
FORBES: Western Digital Unveils Routers Designed to Speed Up Home Entertainment
This is one model below the N900 Central, so it lacks storage, but has the same dual-band range (each at 450 Mbps) and FasTrack Plus technology, which has unlimited open queues for service applications (compared with the lower-end models which are limited to 21 queues).
FORBES: Western Digital Unveils Routers Designed to Speed Up Home Entertainment