Standard cable and plug sizes: USB-C, USB-A, Micro-B, Lightning, HDMI, RJ45, DC barrel, cable and power-cord diameters — dimension sheet Source: Xem Studio, https://xemstudio.com/objects/cable-and-plug-sizes/ (CC BY 4.0) Basis: USB 2.0 and USB Type-C specification values (via connector makers and spec extracts), cable makers' datasheets, cord makers' tables Catalog version: 2026-10-20 Sizes: see table below - USB-C: receptacle opening 8.34 × 2.56; plug tongue 8.25 × 2.4; plug body (overmold) commonly at most 12.35 × 6.5 mm — size cut-outs and grommets for that. - USB-A: plug 12.0 × 4.5, receptacle 12.5 × 5.12; plug body at most 16 × 8. Micro-B: plug 6.85 × 1.8, body at most 10.6 × 8.5. Lightning plug 6.7 × 1.5 (body not published; one cable's is 10.6 × 6.0). - HDMI: Type A plug 13.9 × 4.45 (receptacle 14.0 × 4.55), Mini (C) 10.42 × 2.42, Micro (D) 5.83 × 2.20; plug bodies are not published (licensed spec). RJ45 plug 11.68 × 8.00 × 22.48. - DC barrel 5.5 × 2.1: sleeve Ø5.5, pin hole Ø2.1, 9.5 long. - Cable diameters: USB-C to Lightning 3.6–3.8; USB-C USB 2.0 4.4; USB 3.1 / Thunderbolt 4 4.6–4.7; HDMI 6.3–6.5; Cat5e 4.83; Cat6 5.69. Power cords: SPT-2 flat 18/2 3.6 × 6.9, 16/3 3.9 × 9.5; SJT round 18/3 7.7–8.0, 16/3 8.4–8.8, 14/3 9.3–9.6, 12/3 11.3. - Clips (free STL) for Ø3.6 / 4.5 / 6.4 / 8.0 / 9.5 cables snap on through a 0.7 d opening; the desk grommet slot passes a USB-C plug body. item size_mm USB-C receptacle 8.34 × 2.56 USB-C plug body (max) 12.35 × 6.5 USB-A plug / receptacle 12.0 × 4.5 / 12.5 × 5.12 USB-A plug body (max) 16 × 8 Micro-B plug / body max 6.85 × 1.8 / 10.6 × 8.5 Lightning plug 6.7 × 1.5 HDMI A plug 13.9 × 4.45 HDMI Mini / Micro plug 10.42 × 2.42 / 5.83 × 2.20 RJ45 plug 11.68 × 8.00 × 22.48 DC barrel 5.5 × 2.1 Ø5.5, pin Ø2.1, 9.5 long USB-C to Lightning cable Ø3.6–3.8 USB-C cable (USB 2.0 / 3.x) Ø4.4 / 4.6–4.7 HDMI cable Ø6.3–6.5 Cat5e / Cat6 Ø4.83 / Ø5.69 SPT-2 18/2 flat cord 3.56 × 6.86 SJT 18/3 / 16/3 / 14/3 round cord Ø7.7–8.0 / 8.4–8.8 / 9.3–9.6 Files elsewhere (not hosted by Xem Studio; license as stated by the publisher): - Wikipedia (USB 2.0 / Type-C spec figures): USB hardware — web — Publisher's page; dimensions are facts — https://en.wikipedia.org/wiki/USB_hardware - Molex: USB Type-C connector specification summary (PDF) — web — Publisher's page; dimensions are facts — https://mouser.com/pdfdocs/MolexUSBType-C.pdf - L-com (vendor drawing): USB-C plug overmold 12.35 max — web — Publisher's page; dimensions are facts — https://l-com.com/Images/Downloadables/2D/UAD043MF_2D.pdf - ASUS: HDMI connector types — web — Publisher's page; dimensions are facts — https://www.asus.com/us/support/faq/1004820/ - Wikipedia (TIA-1096-A / ISO 8877): Modular connector — web — Publisher's page; dimensions are facts — https://en.wikipedia.org/wiki/Modular_connector - Same Sky: 5.5 × 2.1 DC plug — web — Publisher's page; dimensions are facts — https://www.sameskydevices.com/product/interconnect/connectors/dc-power-connectors/plugs/pp-2155tl-om - Monoprice (drawing): USB-C to A cable 4.4 mm — web — Publisher's page; dimensions are facts — https://downloads.monoprice.com/files/specsheets/24286_Tech_Drawing_251110.pdf - RS (datasheet): USB-C to Lightning cable 3.6 mm — web — Publisher's page; dimensions are facts — https://docs.rs-online.com/589d/A700000013593467.pdf - Monoprice (drawing): HDMI 8K cable 6.3 mm — web — Publisher's page; dimensions are facts — https://downloads.monoprice.com/files/specsheets/31229_tech_drawing_251012.pdf - Belden: 1583A Cat5e — web — Publisher's page; dimensions are facts — https://people.ece.ubc.ca/~edc/4340.fall2014/datasheets/1583a.pdf - Belden: 2412 Cat6 — web — Publisher's page; dimensions are facts — https://www.mouser.lt/datasheet/3/6/1/2412_techdata.pdf - AWC: SPT-2 cord sizes — web — Publisher's page; dimensions are facts — https://www.awcwire.com/power-cable-and-portable-cord/spt-2 - IEWC: SJT cord — web — Publisher's page; dimensions are facts — https://media.iewc.com/SpecificationSheets/SJT_SS.pdf - Southwire: SJTOW cord — web — Publisher's page; dimensions are facts — https://cabletechsupport.southwire.com/tile/10/spec/70062/?country=CA Free files (CC BY 4.0, Xem Studio; STEP + STL, 9 parts): https://xemstudio.com/files/hardware/cable-and-plug-sizes/index.json API: https://xemstudio.com/api/geometry?object=cable-and-plug-sizes