What is M.2? Is it the same as NGFF?
什麼是 M.2？它與 NGFF 相同嗎？
M.2 was developed by the PCI-SIG and SATA-IO standards organizations and is defined in the PCI-SIG M.2 and the SATA Rev. 3.2 specifications. It was originally called the Next Generation Form Factor (NGFF), and then formally renamed to M.2 in 2013. Many people still refer to M.2 as NGFF.
The M.2 small form factor applies to many add-in card types, such as Wi-Fi, Bluetooth, satellite navigation, Near Field Communication (NFC), digital radio, Wireless Gigabit Alliance (WiGig), Wireless WAN (WWAN), and Solid-State Drives (SSDs).
M.2 has a subset of specific form factors strictly for SSDs.
M.2 是由 PCI-SIG 和 SATA-IO 標準組織所開發，PCI-SIG M.2 和 SATA Rev. 3.2 規格中皆有其定義。原本稱為 NGFF (Next Generation Form Factor)，隨後於 2013 年正式重新命名為 M.2。許多人仍稱 M.2 為 NGFF。
小型的 M.2 外觀尺寸適用於許多擴充卡類型，例如 Wi-Fi、藍牙、衛星導航、近距離無線通訊 (NFC)、數位無線電、無線千兆聯盟 (WiGig)、無線廣域網路 (WWAN) 和固態硬碟 (SSD)。
M.2 有 SSD 固態硬碟專用的各種外觀尺寸。