Genuine Bose USB-C and AUX charging port board for the QuietComfort Ultra Headphones. If your QC Ultra stopped charging or the AUX jack went silent, this little board is usually the culprit, not the whole headphone.
- 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
- Fixes no charging, loose USB-C connection, intermittent charging, and no audio through the AUX cable
- Plug-in replacement with a flex connection; no soldering required
- Grade A (9.5/10): tested working genuine Bose board with little to no cosmetic wear
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
Installation Notes:
- Difficulty: Moderate
- Soldering: Not required
- Recommended tools: 2.0mm Phillips screwdriver, nylon spudger, and a strong metal opening pry tool
- Work slowly around the ear cup clips and flex cables to avoid damage
- Watch our step by step video below before you start
How To Replace The Bose QC Ultra Charging Port:






Reviews
There are no reviews yet.