with the PlayStation. Nintendo continues to support this approach with extending the storage capabilities of the 3DS and Switch, standardizing on the current SD card format. As consoles began incorporating the use of USB ports, support for USB external hard drives was also added, such as with the Xbox 360. Online services With Internet-enabled consoles, console manufacturers offer both free and paid-subscription services that provide value-added services atop the basic functions of the console. Free services generally offer user identity services and access to a digital storefront, while paid services allow players to play online games, interact with other uses through social networking, use cloud saves for supported games, and gain access to free titles on a rotating basis. Examples of such services include the Xbox network, PlayStation Network, and Nintendo Switch Online. Console add-ons Certain consoles saw various add-ons or accessories that were designed to attach to the existing console to extend its functionality. The best example of this was through the various CD-ROM add-ons for consoles of the fourth generation such as the TurboGrafx CD, Atari Jaguar CD, and the Sega CD. Other examples of add-ons include the 32X for the Sega Genesis intended to allow owners of the aging console to play newer games but has several technical faults, and the Game Boy Player for the GameCube to allow it to play Game Boy games. Accessories Consumers can often purchase a range of accessories for consoles outside of the above categories. These can include: Video camera While these can be used with Internet-connected consoles like webcams for communication with other friends as they would be used on personal computers, video camera applications on consoles are more commonly used in augmented reality/mixed reality and motion sensing games. Devices like the EyeToy for PlayStation consoles and the Kinect for Xbox consoles were center-points for a range of games to support these devices on their respective systems. Standard Headsets Headsets provide a combination of headphones and a microphone for chatting with other players without disturbing others nearby in the same room. Virtual reality headsets Some virtual reality (VR) headsets can operate independently of consoles or use personal computers for their main processing system. , the only direct VR support on consoles is the PlayStation VR, though support for VR on other consoles is planned by the other manufacturers. Docking station For handheld systems as well as hybrids such as the