Bose QC Ultra 440108 USB-C AUX Charging Port Board + Tools OEM Replacement Parts

Everything you need to bring a Bose QuietComfort Ultra back to charging: a genuine USB-C and AUX port board plus the three tools our techs use for this exact repair. No more wiggling the cable and hoping.

• Brand: Bose
• Condition: Grade A - Excellent
• Fits Models: Bose QuietComfort Ultra Headphones (1st Gen, 2023), model 440108
• Part Number: 878937-0010 / 878937-0020

Key Features:

• Genuine Bose OEM USB-C charging port and 2.5mm AUX input board
• Grade A (9.5/10): tested working board with little to no cosmetic wear
• Fixes no charging, loose USB-C connection, intermittent charging and no audio through the AUX cable
• Includes the exact tools our repair techs use on this job
• Plug in replacement with a flex connection, no soldering required

Compatibility:

• Bose QuietComfort Ultra Headphones (1st Gen, 2023), model 440108
• Find your model by pulling down the left ear cushion mesh. You will see QC Ultra and 440108 printed on the housing.

Not compatible with: QuietComfort Headphones, QuietComfort 45, QuietComfort 35 / 35 II, Noise Cancelling Headphones 700 or any QC Ultra Earbuds. Fit in the QuietComfort Ultra Headphones (2nd Gen, 2025) has not been verified.

What's Included:

• 1 x Bose QuietComfort Ultra USB-C + AUX Port Board
• 1 x Nylon Spudger
• 1 x 2.0mm Phillips Precision Screwdriver
• 1 x Strong Metal Pry Tool

Installation Notes:

• Difficulty: Moderate
• Soldering: Not required
• Use the metal pry tool and nylon spudger to release the ear cup clips, then the 2.0mm Phillips to remove the board screws
• Work slowly around the flex cables to avoid damage
• Watch our step by step video below before you start

How To Replace The Bose QC Ultra Charging Port: