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ASUS PRIME B450M-A IO Shield Backplate Replacement PETG Plate

This new IO shield backplate is a replacement part designed for the ASUS PRIME B450M-A motherboard. It helps cover the rear case opening around the motherboard ports for a cleaner fit and added protection from dust and debris. Made from PETG as stated in the listing title; check the listing for details on exact finish, cutouts, and compatibility notes. Condition is New, and it includes Free Shipping. Before ordering, compare the port layout on your motherboard to the listing images and description to ensure the correct match.

ASUS PRIME B450M-A IO Shield Backplate Replacement PETG Plate
USD 9.49
Condition: see listing
LocationSkillman US
ShippingFree shipping (check listing for details)
Seller mini-factory
99.7% positive · 37535 feedback
ListingFixedPrice · Active
Start time2026-03-14T04:23:55.000Z
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ASUS PRIME B450M-A IO Shield Backplate Replacement PETG Plate Specs
ColorBlack
BrandUnbranded
TypeMotherboard Port
Listing details

IO Shield Backplate for ASUS PRIME B450M-A Motherboard Replacement PETGCompatibilityMotherboard: ASUS PRIME B450M-A (AM4 Socket)Type: Custom 3D-printed replacement for the original ASUS I/O shield.Fitment: Precision-engineered to snap into any standard ATX or Micro-ATX computer case.Technical SpecificationsMaterial: High-Grade PETGThermal Performance: Heat resistant up to 80°C (176°F). Standard PLA prints are prone to warping or sagging from PC exhaust heat; this PETG version maintains its structural integrity under the thermal demands of B450 chipset systems.Port Layout: Precision-aligned for the B450M-A layout:Video: 1x HDMI / 1x DVI-D / 1x VGA (D-Sub).USB: 6x Total USB Ports (including USB 3.1 Gen 2).Network: 1x RJ45 LAN.Audio: 3-Jack High Definition Audio Stack.Legacy: 2x PS/2 Ports (Dedicated Keyboard and Mouse).Design FeaturesOptimized Clearance: Port openings are modeled with slightly wider tolerances than the original metal plates. This ensures that bulky USB, DVI, or HDMI cable housings plug in securely without hitting the faceplate.Durability: PETG provides superior impact resistance and flexibility compared to brittle PLA, ensuring a more reliable and durable snap-fit during installation.AttributionThis physical component is produced from the design by SamA via Printables.