understanding fiber optics

SANOXY Cables and Adapters; 1ft Cat5e 350 MHz UTP Assembled Ethernet Network Patch Cable, Purple

Monoprice DisplayPort 1.4 Cable - 6 Feet - Black | For Computer, Desktop, Laptop, PC, Monitor, Projector, Dell, ASUS, and More - Select Series

Sanoxy USB 3.0 Gigabit 1000Mbps Ethernet LAN RJ45 Network Adapter 3 Ports HUB

Floor Cable Cover - 10 Ft Gray Duct Cord Protector Covers Cables, Cords, or Wires - 3 Channel On Floor Raceway for Sidewalks or Walkways (10 ft)

FosPower 24K Gold-Plated Toslink to Mini Toslink Cable - 3FT, S/PDIF Digital Optical Audio Cable, Premium Fiber Core Optical Cable

Nerd Block Sniper Elite 4 Mini Keychain Projector Flashlight

Fosmon 8K HDMI 2.1 Switch, 2-Port Bi-Directional HDMI Switcher, HDCP 2.3 HDMI Splitter for PS5, PS4, Xbox, Roku, Apple TV, Fire Stick

Netgear AC750 WiFi Range Extender (EX3110)

SatelliteSale Flex Single or Dual Cable White or Black Screw Nail Clips 100 Pcs

Musician's Gear Braided Instrument Cable 1/4" -

FosPower 24K Gold-Plated Optical Digital Audio Cable, Zero RFI & EMI Interference S/PDIF Toslink Cable with Ultra Durable Nylon Braided Jacket

Set of Twelve 25-inch Cord Covers – 300-inch Total On-Wall Cable Management Kit for Wall-Mounted TV or Computer Cables by Simple Cord (White)

D-Link Wi-Fi 6 AX1800 Gigabit USB 3.0 Adapter with Cradle for Upgrading Desktop & Laptop PCs - (DWA-X1850-B1)

FosPower 24K Gold-Plated Optical Digital Audio Cable - 15FT, Zero RFI & EMI Interference S/PDIF Toslink Cable with Ultra Durable Nylon Braided Jacket

Costway 3/4/5/6 FT Pre-Lit Fiber Optic Artificial Christmas Tree with Multicolor Led Lights

Lucid Audio Personal Hearing Rechargeable Amplifier - 1 Pair

Bower® RGB Quad Modular Light Kit with Tripod in Black

Wrap-It 40pk Multi-Color Cable Labels Medium

HDMI 90 Degree Adapter - Dealworthy™

Fosmon 2 Gang Brush Wall Plates Wire Hider, Cable Wall Plate for Cable Management, Double Gang Wall Plate for TV, Ethernet Cable Pass Through

RadioShack 2-in-1 Video Adapter 3", HDMI and VGA to HDMI Converter, Plug-and-Play, Compact Design, High-Quality Video Streaming Accessory

Ring Spotlight Cam Pro with Battery 2K Video LED Light Dual-Band WiFi and 3D Motion Detection - Black: Outdoor Wireless Security System

SUGIFT Telescope 80mm Aperture 500mm Astronomical Refractor for Adults Beginners with Tripod Phone Adapter Carry Bag and Accessories