Editing SD card (section)

==== UHS-II ====
[[File:Lexar 1000x MicroSDHC UHS-II U3 Class 10 - Back.jpg|thumb|upright|Back side of a Lexar UHS-II microSDHC card, showing the additional row of UHS-II connections]]

Specified in version 4.0, further raises the data transfer rate to a theoretical maximum of 156&nbsp;MB/s (full-[[Duplex (telecommunications)|duplex]]) or 312&nbsp;MB/s (half-duplex) using an additional row of pins for LVDS signalling<ref name="firstsdxc">{{cite web | url = https://www.sdcard.org/press/SD_Association_Announces_UHS-II_eBOOK_Jan_5_2011_ENGLISH.PDF | publisher = SD Card | title = Association Triples Speeds with UHS-II | date = 5 January 2011 | access-date = 2011-08-09 | archive-date = 2011-03-21 | archive-url = https://web.archive.org/web/20110321195143/http://www.sdcard.org/press/SD_Association_Announces_UHS-II_eBOOK_Jan_5_2011_ENGLISH.PDF | url-status = dead }}</ref> (a total of 17 pins for full-size and 16 pins for micro-size cards).<ref name="sda_bus_speed"/> While first implementations in compact system cameras were seen three years after specification (2014), it took many more years until UHS-II was implemented on a regular basis. At the beginning of 2025, 100 DSLR and mirrorless cameras support UHS-II.<ref>{{cite web |url=https://www.memorycard-lab.com/-Article/UHS-II-Cameras | publisher = memorycard-lab.com | title = UHS-II camera list | access-date=2025-01-04}}</ref>