 In June 2011, Apple unveiled the updated Time Capsule with a higher capacity 2 TB and 3 TB.They also changed the wireless card from a Marvell chip to a Broadcom BCM4331 chip.When used in conjunction with the latest 2011 MacBooks, MacBook Pros, and MacBook Airs (which also use a Broadcom BCM4331 wireless chip), the wireless signal is improved due to Broadcom's Frame Bursting technology.