FIELD GUIDESource-led reference

371 source-linked field notes

The connector field guide.

Browse the source-linked collection. Every record separates documented facts from the things a shape or label cannot tell you.

371 field notes

Source checked · independent review pending

Computer-generated illustration with prior AI visual review. Not a photograph, measurement or compatibility check. Independent technical and rights review pending.

USB, Thunderbolt & mobile

USB plugs and ports, Thunderbolt and Lightning.

12 connectors · 19 more

Back to sections ↑

Display & video

HDMI, DisplayPort, DVI, VGA, analog video and docks.

15 connectors · 41 more

Back to sections ↑

Audio

Jacks, XLR, RCA, optical audio and interface wiring.

18 connectors · 13 more

Back to sections ↑

Power & charging

Mains, DC barrel, appliance couplers and charging.

61 connectors · 21 more

Computer-generated illustration

P299 / Power / Connector

IEC 60320 C1 cord connector

IEC coupler identity and family rating context do not by themselves establish appliance voltage, cord-set approval, wiring, safe substitution or installation suitability.

Computer-generated illustration

P301 / Power / Connector

IEC 60320 C9 cord connector

IEC coupler identity and family rating context do not by themselves establish appliance voltage, cord-set approval, wiring, safe substitution or installation suitability.

Computer-generated illustration

P271 / Power / Connector

NEMA 1-15P plug

A familiar shell, blade or coding family does not establish voltage, current, wiring, grounding, mating or safe operation.

Computer-generated illustration

P273 / Power / Connector

NEMA 6-15P plug

A familiar shell, blade or coding family does not establish voltage, current, wiring, grounding, mating or safe operation.

Computer-generated illustration

P275 / Power / Connector

NEMA 6-20P plug

A familiar shell, blade or coding family does not establish voltage, current, wiring, grounding, mating or safe operation.

Back to sections ↑

Network, fiber & telephone

Ethernet, PoE, fiber, modular phone and pluggable optics.

29 connectors · 14 more

Back to sections ↑

Storage & memory

SATA, SAS, M.2, U.2 and memory cards.

31 connectors · 14 more

Back to sections ↑

Inside the PC

Motherboard headers, PC power and wire-to-board families.

23 connectors

Back to sections ↑

Coax, RF & legacy

BNC, F-type, SMA and micro RF, FireWire and legacy computer ports.

36 connectors · 5 more

Back to sections ↑

Working methods

How to read labels, models, sources and failure reports.

1 connector · 18 more

Back to sections ↑

Reference destinations / 12 selected pages

The connector questions worth checking before you buy or connect.

Four established six-part references and eight new first-answer field cards, all attached to canonical records. Source-checked means source-traced draft, not an independent technical sign-off. No connector shape certifies an end-to-end connection.

01 / Established six-part readerUSB Type-CUSB Type-C names the reversible connector, not a guaranteed data rate, charging wattage or video capability.Read the scoped reference ↗02 / Established six-part readerHDMI Type-AThe familiar full-size HDMI connector is Type-A; Mini and Micro HDMI use different physical forms.Read the scoped reference ↗03 / Established six-part readerDisplayPort connectorDisplayPort provides a video interface with product-specific features and link rates.Read the scoped reference ↗04 / Established six-part readerM.2 card edge interfaceM.2 physical fit and keying do not establish whether a host supports a particular SATA, PCIe or NVMe device.Read the scoped reference ↗05 / Field question with scoped answerMini HDMI Type-CMini HDMI is HDMI Type-C; it is physically different from Micro HDMI Type-D.Read the scoped reference ↗06 / Field question with scoped answerMicro HDMI Type-DMicro HDMI is HDMI Type-D, distinct from both Mini HDMI and Micro-USB.Read the scoped reference ↗07 / Field question with scoped answer8P8C modular connector (commonly called RJ45)The common RJ45-style modular connector family has eight positions and eight contacts.Read the scoped reference ↗08 / Field question with scoped answer3.5 mm TRRS connectorCTIA and OMTP headset arrangements can assign microphone and ground differently within a 3.5 mm TRRS interface.Read the scoped reference ↗09 / Field question with scoped answerSATA 7-pin data connectorSATA data cables use a seven-contact connector distinct from the separate power connection.Read the scoped reference ↗10 / Field question with scoped answerSATA 15-pin power connectorSerial ATA includes a distinct 15-position power connector alongside the separate 7-pin data connector.Read the scoped reference ↗11 / Field question with scoped answer5.5 x 2.1 mm barrel connector: identification onlyA barrel connector description needs outer diameter, inner diameter and mating length; polarity is a separate requirement.Read the scoped reference ↗12 / Field question with scoped answerHirose U.FL micro-coaxial RF connectorHirose U.FL is a miniature coaxial RF family with cable plugs and PCB-mounted receptacles. Member configurations differ in cable size and mating height.Read the scoped reference ↗