// Memory Card Connectors
Intel Optane uses 3D XPoint non-volatile memory technology on M.2 2280 for ultra-low latency (sub-10 microsecond) storag
NVMe Add-in Card (AIC) uses a standard PCIe x4 or x16 slot for large capacity enterprise SSDs or RAID controllers. Half-
M.2 2280 is the standard and most common NVMe SSD form factor at 22x80mm. Compatible with all desktop motherboards and m
M.2 22110 (110mm length) is the enterprise M.2 form factor used in servers and workstations where longer cards allow mor
M.2 2260 at 22x60mm is a mid-length M.2 form factor less common than 2280. Used in some older ultrabooks and embedded sy
M.2 2242 is 22x42mm, a compact M.2 form factor used in some laptops, mini-PCs, and industrial embedded systems where the
M.2 2230 is the shortest standard M.2 form factor at 22x30mm. Used in the Steam Deck, Surface Pro, and other compact dev
UFS 3.1 (Universal Flash Storage) achieves up to 2100 MB/s sequential read using two MIPI M-PHY Gen 4 lanes with SCSI co
UFS 4.0 doubles UFS 3.1 bandwidth to 4200 MB/s using MIPI M-PHY Gen 5 lanes. Used in Samsung Galaxy S23 series and Qualc
eMMC 5.1 (embedded MultiMediaCard) solders directly to PCB as a BGA package providing up to 400 MB/s sequential read via
SD UHS-III (Ultra High Speed III) adds a third row of contacts to the SD card for two full-duplex lanes achieving up to
CFexpress Type C is a proposed larger format using four PCIe 4.0 lanes for theoretical speeds exceeding 6 GB/s. Intended
CFexpress Type A is Sony proprietary camera memory using one PCIe 3.0 lane for up to 880 MB/s read speed. Used in Sony A