https://catalogs.atrtreehouse.com/avcat/ctl8964/index.cfm?manufacturer=kramer&product=3232vsr-xl
3232VSR-XL | 32 x 32 4RU Composite Video Matrix Switcher with Balanced Stereo Audio + Redundant...
https://avprosupply.com/T--24x4-HDMI-4RU-C-by-Apantac-4RU-24x4-HDMI-I-O-Multiviewer-w-UOM-CAT6-A.html
Apantac T-24x4-HDMI-4RU-C-HDMI Multiviewers | AVProSupply
4 RU 24x4 HDMI video I/O quad head multiviewer
apantachdmimultiviewers
https://oneav.eu/nl/racks/21261/19-skeletrek-4ru
19" skeletrek, 4RU | OneAV Germany | AV Distribution | B2B Online Shop
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https://northernlink.com/products/catalogue/nebula-data-centre/mtp-mpo-solution-2/fotonshield-hd-cassette-type-fiber-patch-panel-empty-19-4ru-fits-36-x-16f-lc-cassettes-with-front-rear-organizer/
FotonShield HD Cassette Type Fiber Patch Panel (Empty), 19" 4RU - Fits 36 x 16F LC Cassettes with...
Mar 25, 2025 - The FotonShield HD Cassette Type Fiber Patch Panel is a high-density, 4RU rack-mountable solution engineered for fiber optic access networks that require...
https://www.vadcon.com/pp/ppx64-nausb3b.html
USB Patch Panel - 4RU 64 Port USB Patch Panel - 3.0 - PPX64-NAUSB3B
4RU 64 Port USB 3.0 Patch Panel - Black Shell
patch panelusbport