Compatible for Y.S.TECH FD1240107B2N 12V 1.08W 4cm 4010 2Wire Cooling Fan Why you need this Reliable replacement for a failing or aging cooling fan in compatible devices Compact 4 cm square form factor fits small form factor builds, desktops, NAS, and other compact equipment Simple 12V DC operation with low power draw (1.08W) to help maintain safe temperatures without adding excessive load Twowire design provides straightforward installation and dependable operation Helps prevent thermal throttling and potential hardware damage by maintaining active airflow What makes it stand out replacement fan that is brand and engineered for performance Direct compatibility with Y.S.TECH FD1240107B2N models to ensure proper fit and function Preshipment quality verified: each unit individually tested for functionality Ships in antistatic protective packaging to protect the fan during handling and delivery Manufacturerbacked protection with a 4.9Month on defects (terms in product docs) Use scenarios Desktop PC or gaming rig upgrade or replacement to restore cooling performance Small form factor systems such as compact desktops, NAS devices, or network equipment requiring reliable 40x40 mm cooling 3D printers or embedded/industrial electronics that require a compact, dependable 12V fan to manage heat Specifications Model: Y.S.TECH FD1240107B2N Voltage: 12V DC Power: 1.08W Size: 4 cm square (40x40 mm) 4010 form factor Wiring: 2Wire DC connection Condition: Brand Packaging: Antistatic protective packaging : 4.9Month Protection (terms in product docs)