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  2. Dell OptiPlex - Wikipedia

    en.wikipedia.org/wiki/Dell_OptiPlex

    Dell OptiPlex series 5 chassis features Chassis Models Image Height Width Depth Expansion Card Slots external bays Internal bays Power Supply 5.25" 3.5" Micro Form Factor (MFF) 7040 to 7070 18.3 cm (7.2 in) 3.5 cm (1.4 in) 17.8 cm (7.0 in) — — — 1 M.2 2280 SSD, 1 2.5" HDD 65 or 90 W Power Adapter Small Form Factor (SFF) 7040 to 7070 29.0 ...

  3. Small form factor PC - Wikipedia

    en.wikipedia.org/wiki/Small_form_factor_PC

    Each model of Dell's OptiPlex line of computers typically includes an Ultra-Small Form Factor (USFF) chassis option. In the Core 2 era, these machines used 8.9 cm (3.5") desktop hard drives and external power supplies, such as the OptiPlex 745 and 755. More recent units use 6.4 cm (2.5") laptop hard drives and have integrated power supplies ...

  4. Adapter (computing) - Wikipedia

    en.wikipedia.org/wiki/Adapter_(computing)

    An adapter card or expansion card is a circuit board which is plugged into the expansion bus in a computer to add function or resources, in much the same way as a host bus adapter (see above). [ 3 ] [ 1 ] Common adapter cards include video cards , network cards , sound cards , and other I/O cards.

  5. USB - Wikipedia

    en.wikipedia.org/wiki/USB

    The USB 3.0 specification defined a new architecture and protocol named SuperSpeed (aka SuperSpeed USB, marketed as SS), which included a new lane for a new signal coding scheme (8b/10b symbols, 5 Gbit/s; later also known as Gen 1) providing full-duplex data transfers that physically required five additional wires and pins, while preserving the ...

  6. USB-to-serial adapter - Wikipedia

    en.wikipedia.org/wiki/USB-to-serial_adapter

    FTDI US232R : USB to RS-232 cable. A USB-to-serial adapter or simply USB adapter is a type of protocol converter that is used for converting USB data signals to and from serial communications standards (serial ports). Most commonly the USB data signals are converted to either RS-232, RS-485, RS-422, or TTL-level UART serial data.

  7. Dell Dimension - Wikipedia

    en.wikipedia.org/wiki/Dell_Dimension

    Two older Dell Dimension models. Left: Dell Dimension XPS D266; right: Dell Dimension 4500. The Dell Dimension is a discontinued series of home and business desktop computers manufactured by Dell. In 2007, the Dimension series was discontinued and replaced with the Dell Inspiron series for low-end models and the Dell Studio series for higher ...

  8. Power supply unit (computer) - Wikipedia

    en.wikipedia.org/wiki/Power_supply_unit_(computer)

    Another ATX addition was the +5 V SB (standby) rail for providing a small amount of standby power, even when the computer was nominally "off". When a computer is in ACPI S3 sleep mode, only +5 V SB rail is used. There are two basic differences between AT and ATX power supplies: the connectors that provide power to the motherboard, and the soft ...

  9. SATA Express - Wikipedia

    en.wikipedia.org/wiki/SATA_Express

    As of March 2015, some NVM Express devices in form of 2.5-inch drives use the U.2 connector (originally known as SFF-8639, with the renaming taking place in June 2015 [33]), [35] [36] which is expected to gain broader acceptance. The U.2 connector is mechanically identical to the SATA Express device plug, but provides four PCI Express lanes ...

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