# item.guide

Electronics

7 categories

Technical reference standards for consumer and enterprise electronics, spanning audio-video interfaces, battery form factors, computer hardware, mains power plugs, network infrastructure, and wireless communications.

Categories

Audio & Video

3 categories

Specifications for analog and digital audiovisual standards, covering display transmission cables (HDMI, DisplayPort), analog and professional balanced audio connectors (TRS, XLR, RCA), and display panel and backlight technologies.

Display Cables • Jack Connectors • Panel Types

Batteries

3 categories

Standardized electrochemical cell form factors, chemical compositions, nominal voltages, and capacity ratings for button coin cells and cylindrical battery formats.

Battery Chemistries • Button Cells • Cylindrical Cells

Cameras & Optics

6 categories

Technical specifications for camera sensor formats, mirrorless and SLR lens mounts, filter threads, tripod and cage rigging interfaces, exposure standards, and analog film formats.

Exposure & Optics • Film Formats • Filter Threads • Lens Mounts • Sensor Formats • Tripod & Rigging

Computer Components

7 categories

Physical and electrical specifications for modular PC and server hardware, covering processor packaging architectures, memory generations, storage form factors, graphics expansion buses, memory cards, and universal serial buses.

Graphics Cards • Memory Cards • Power Connectors & PCB Packages • Processors • RAM • SSD • USB

Mains Power

1 category · 1 item

International alternating current (AC) domestic mains electrical standards, covering worldwide plug and socket types (Types A through O) and national grid voltages and frequencies.

Plug Types

Networking

5 categories

Standardized specifications for wired and wireless communication systems, including twisted-pair Ethernet cables, IEEE 802.11 Wi-Fi standards, Power over Ethernet (PoE) delivery, optical transceiver form factors, and fiber optic connectors.

Ethernet Cables • Fiber Connectors • Optical Transceivers • Power over Ethernet • Wi-Fi

Wireless Technologies

7 categories

Standardized over-the-air communication, contactless identification, and wireless power transfer protocols, including smart cards, RFID, Bluetooth, IoT mesh networks, cellular generations, LPWAN, and spatial tracking.

Bluetooth • Cellular Generations • Infrared & Optical • LPWAN & Long Range • Smart Cards & RFID • Smart Home & Mesh • Wireless Power