Memory Connectors:
The term refers to an interface used for connecting memory devices, which could be classified based on its individual uses, as was shown below.
(1) SATA: The abbreviation of Serial ATA (Advanced Technology Attachment, another name of the first-generation IDE), a hard disk interface that replaces PATA, which is divided into 2 parts: signal (7 wires) and power supply (15 wires).
(2) SAS: The abbreviation of Serial Attached SCSI, compatible with SATA.
(3) SCSI: Small Computer System Interface, which has developed to the sixth generation, with 25 pins, 50 pins, 68 pins, or 80 pins, arranged in 2 rows or 3 rows, and there are many interface forms.
(4) E-SATA: External SATA, which is an extended specification of SATA, used for connecting external devices, with 7 wires, and it is fool-proof via thickness and groove.
(5) NGFF: Next Generation Form Factor, which has two kinds of interface, M-key, i.e., the former name of M.2 interface (PCI-E 4x channel) and B-key (SATA or PCI-E 2x channel).
(6) VHDCI: Very High Density Connector Interface, which is a kind of SCSI Connector.
(7) IEEE-1394: Also known as firewire, with a serial interface, and 6 pins or 4 pins.
(8) M.2: i.e. NGFF, an interface customized for ultrabooks, which replaces mSATA, and is compatible with many protocols, such as SATA, PCIe, USB, HSIC, UART, and SMBus. Multiple sizes and specifications are defined below.
(9) mSATA: Mini-SATA, of which the appearance and pins are the same as those of mini PCI-E (8+18 pin), but the signal definition is different.
(10) PCI-E: Peripheral component interconnect express, a high-speed serial point-to-point interface, the most common interface in computers, there are multiple versions with different interface sizes and data bits.
