Set of 5 Ethernet Port Dust Cap/cover, Dust Cap for Ethernet Port, Ethernet Port Protector, LAN Port Guard, Network Port Cap

10Pcs Black Ethernet Hub Port RJ45 Anti Dust Cover Cap Protector Plug for RJ45 Female Jack

Protect your network switches from dust and contaminants, by covering up the unused SFP slots. Simply insert the dust covers into any empty SFP/SFP+ slots in your network switches.

StarTech.com SFP Dust Covers - 10 Pack

20pcs Router Port Dust Cover RJ45 Dust Ethernet Plug Hub Interface Caps, Size: 1.5X1X0.5CM

NOBRAND 100pcs Red RJ45 Port Ethernet LAN Hub Anti Dust Cover Plug Cap Blockout Protector with Proprietary Lock and Key, Women's, Size: One Size

networking - Why do some RJ45 plugs have the lock release clip under a rubber cover? - Super User

Dust Plug For Network Port: Silicone Fiber Optic Server Rj45 - Temu Italy

100Pcs Blue RJ45 Port Ethernet LAN Hub Anti Dust Cover Plug Cap Blockout Protector with Proprietary Lock and Key

Dust cap for RJ45 female socket (Set x10) - Audiophonics

NTW RJ45 Port Cover is a premier Layer 1 Security Solution tackles the security risks of open ports. A patented solution that secures from unauthorized RJ45 port access and security breaches. The innovative design of the Port Blocker surpasses the conventional one key fits all design of our competitors and offers four unique, flush mounted and proprietary locks and keys for unparalleled security.