Editing Memory Stick (section)

=== Memory Stick Micro (M2) ===
{{Distinguish|text = [[M.2]], a form factor for [[expansion cards]]}}
[[File:Sony Memory Stick Micro M2 - 1GB-0423.jpg|alt=|thumb|90x90px|Memory Stick Micro]]
In a joint venture with [[SanDisk]], Sony released a new Memory Stick format on February 6, 2006. The '''Memory Stick Micro''' ('''M2''') measures 15 × 12.5 × 1.2&nbsp;mm (roughly one-quarter the size of the Duo) with 64&nbsp;MB, 128&nbsp;MB, 256&nbsp;MB, 512&nbsp;MB, 1&nbsp;GB, 2&nbsp;GB, 4&nbsp;GB, 8&nbsp;GB, and 16&nbsp;GB capacities available. The format has a theoretical limit of 32&nbsp;GB and maximum transfer speed of 160&nbsp;Mbit/s. However, as with the ''PRO Duo'' format, it has been expanded through the ''XC'' series as ''Memory Stick XC Micro'' and ''Memory Stick XC-HG Micro'', both with the ''theoretical'' maximum capacity of 2&nbsp;TB.<ref name="sonyinsider" />{{efn|reference=In this article the unit symbol 'TB' is used to mean 1000^4 bytes (1 [[terabyte]])}}

The M2 comes with an adapter, much like the Duo Sticks, to ensure physical compatibility with Memory Stick PRO devices. However, not all devices with a PRO slot are compatible with the M2/Adapter combination, as the firmware of older devices don't support the higher capacity of some M2 cards. One example is certain [[Sony CLIÉ]] [[Personal digital assistant|PDA]]s which don't support cards larger than 2&nbsp;GB.<ref>{{cite web|url=http://www.sony-asia.com/microsite/memorystick/comp_chart/Clie_Handhelds.html |title=Sony Compatibility Chart – Clie Handhelds |website=Sony-asia.com |access-date=November 13, 2011}}</ref>

Sony announced on June 1, 2009, that M2 support in [[Sony Ericsson]] phones would be dropped in favor of [[microSD]].<ref>{{cite web|url=http://www.trustedreviews.com/news/Exclusive--Sony-Ericsson-Dropping-Memory-Stick-Micro |title=Trusted Review – Sony Ericsson Dropping Memory Stick Micro |website=Trustedreviews.com |access-date=November 13, 2011}}</ref>

The [[Sony RX#RX0 II|Sony DSC-RX0 Mark II]] made a revived usage of M2 slots.