The ROCAF will soon have all 6 Hawkeyes upgraded to the same standard and better able to manage the battlespace in any future conflict. From what I've read, they come with CEC kit which will facilitate interoperability with USN
Defense News Mobile
Monday, December 19, 2011
7: 19 PM
Taiwan Receives Two U.S . Early Warning Aircraft
TAIPEI - Taiwan received two upgraded early warning aircraft from the United States on Dec. 18, the island's air force said, as part ofan arms deal that upset China-U .S. relations.
The arrival of the E-2 K aircraft in southern Kaohsiung city brings to four the number of such planes in Taiwan's air force, it said, after they were sent to the United States last year for upgrades.
Taiwan acquired four E- 2Ts in 1995 and added two E-2 K, an improved version of the Grumman Hawkeye series, in 2006.
A pair of E-2 Ts were transported to the United States for upgrading last month, as part of a $6 .5 billion arms sale agreed with
Taiwan in 2008, which also included advanced interceptor Patriot missiles, Apache attack helicopters and submarine- launched
missiles.