Mini DisplayPort connector. A third-party converter must be used in order to use this display with older Macs. Furthermore, many newer Apple users with newer MacBooks that solely have USB-C ports have been continuously perplexed by the fact that their Apple-branded Thunderbolt 3 (USB-C) to Thunderbolt 2 adapters do not transmit a signal to their LED Cinema displays. Many users have mistakenly presumed their new MacBooks were incompatible with their older displays, when in fact an ordinary generic USB-C to Mini DisplayPort adapter will successfully transmit the same signal; This is due to a small internal difference in the newer Thunderbolt 2 and the older Mini DisplayPort standards. With the introduction of LED panels, the matte, anti-glare screen panels were retired, except for the 30" Cinema Display. Apple had already moved away from matte screens in its line of iMac desktop computers on August 7, 2007. Apple had not offered any equipment with a matte, anti-glare screen after the 15" non-Retina MacBook Pro was discontinued in October 2013 until the introduction of the Pro Display XDR in 2019. This had been a cause for concern among users who wanted matte screens for their area of work, particularly graphic designers, photographers and users who extensively view their screens. Matte screens, like matte-surface photographs, diffuse reflected light and cannot provide the same black levels as glossy screens, which are required for working with HDR images and videos and thus are disadvantaged in this area. However, the matte screens have a far lower level of reflectivity, which improves ease-of-use.The Wall Street Journal'' referred to Apple's removal of the matte screen as one of Apple's worst design decisions. On July 26, 2010, the 24-inch LED Cinema Display and the 30-inch Cinema HD Display were replaced by a 27-inch model that supports up to 2560×1440 resolution. This model was sold for $999 USD. On July 20, 2011, the LED Cinema Display was discontinued, and replaced by the Apple Thunderbolt Display. Technical specifications On August 7, 2006 the Aluminium Cinema displays had a silent upgrade that boosted the brightness and contrast ratios to 300/400 cd/m2 and 700:1. The last Cinema displays are still desirable to professionals being the last anti-glare displays made by Apple (until the Pro Display XDR) and having a true IPS 8-bit (no dithering) fully back-lit panel and slightly higher brightness than that of the newer Apple Thunderbolt displays, which have a reflective