The second-generation Chromecast has a disc-shaped body with a short length of HDMI cable attached (as opposed to the HDMI plug built into the original model). The cable is flexible and the plug can magnetically attach to the device body for more positioning options behind a television. The second-generation model uses a Marvell Armada 1500 Mini Plus 88DE3006 SoC, which has dual ARM Cortex-A7 processors running at 1.2 GHz. The unit contains an Avastar 88W8887, which has improved Wi-Fi performance and can use the 802.11 ac and 5 GHz bands, while containing three adaptive antennas for better connections to home routers.[21][22][23] The device contains 512 MB of Samsung DDR3L RAM and 256 MB of flash storage.[24]