At the ongoing Intel Developer Forum (IDF) 2013 event in Beijing, Intel announced second-generation Thunderbolt specification. Pin and plug-compatible with existing Thunderbolt devices, the second-generation Thunderbolt doubles bandwidth over its predecessor, offering devices an enormous 20 Gb/s of bandwidth, four times that of USB 3.0 SuperSpeed. The bandwidth enables users the ability to transfer uncompressed 4K Ultra-HD video without causing display to lag. To back the specification, Intel announced the "Falcon Ridge" line of Thunderbolt host controllers, mass production of which will commence by late-2013, going into 2014. In addition, the company launched two "Redwood Ridge" host controllers, DSL4510 and DSL4410. The two add DisplayPort 1.2 capability when connecting to native DP displays, improve power management, and reduce platform BOM cost.