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2. Three-prong adaptor - Wikipedia

   en.wikipedia.org/wiki/Three-prong_adaptor

   Three-prong plugs do not fit into the older, two-prong receptacles. [7] When used as intended, the ground pin of the 3-wire receptacle is to be connected to a grounded cover screw, or to an external ground. In 1969, Underwriters Laboratories mandated three-prong plugs on major appliances for safety. [7]

3. USB-C - Wikipedia

   en.wikipedia.org/wiki/USB-C

   It preserves existing USB 3.1 SuperSpeed and SuperSpeed+ data modes and introduces two new SuperSpeed+ transfer modes over the USB-C connector using two-lane operation, doubling the signalling rates to 10 and 20 Gbit/s (raw data rate 1 and ~2.4 GB/s). USB 3.2 is only supported by USB-C, making previously used USB connectors obsolete.

4. USB hardware - Wikipedia

   en.wikipedia.org/wiki/USB_hardware

   The 3.0 receptacles are backward-compatible with the corresponding pre-3.0 plugs. USB 3. x and USB 1. x Type-A plugs and receptacles are designed to interoperate. To achieve USB 3.0's SuperSpeed (and SuperSpeed+ for USB 3.1 Gen 2), 5 extra pins are added to the unused area of the original 4 pin USB 1.0 design, making USB 3.0 Type-A plugs and ...

5. NEMA connector - Wikipedia

   en.wikipedia.org/wiki/NEMA_connector

   NEMA 7 devices are three wire/prong (hot-neutral-ground) connectors rated at 277 V. The 15 A 7-15 plug has the crowsfoot current carrying pins of the Type I plug, but with a U-shaped earth pin. The 7-20 version has an enlarged line/hot pin. 7-30 is a larger diameter connector, with an L-shaped neutral, while the 7-50 has an enlarged neutral pin ...

6. USB - Wikipedia

   en.wikipedia.org/wiki/USB

   Tunneled USB 3.2 Gen 2×2 (20 Gbit/s) No: No: No: Tunneled USB 3 Gen T (5–80 Gbit/s) No: No: No: A type of USB 3 Tunneling architecture where the Enhanced SuperSpeed System is extended to allow operation at the maximum bandwidth available on the USB4 Link. USB4 Gen 2 (10 or 20 Gbit/s) Yes: Yes: Yes: Either one or two lanes USB4 Gen 3 (20 or ...

7. Dunelm Group - Wikipedia

   en.wikipedia.org/wiki/Dunelm_Group

   Dunelm Group plc, trading as Dunelm, is a British home furnishings retailer operating in the United Kingdom. One of the largest homeware retailers in the UK, the company headquarters are in Syston, England. It is listed on the London Stock Exchange and is a constituent of the FTSE 250 Index. [2] Until 2013 the company traded as Dunelm Mill. [3]