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Description
Shimano EW-JC304 Di2 Junction Box - 4 Ports, Use With EW-SD300Shimano Di2 Frame Junction Box Frame Junction Box connects via SD50 E tube wires to four different points: front derailleur, rear derailleur, cockpit junction box and battery mount All Di2 components on the bicycle require the same firmware version. Using Di2 components with different firmware versions may cause malfunctions Use Di2 system checker to update component firmware from http: e tubeproject. shimano. com Product Specifics Today's Stock
Shimano Di2 Frame Junction Box- Frame Junction Box connects via SD50 E-tube wires to four different points: front derailleur, rear derailleur, cockpit junction box and battery mount
- All Di2 components on the bicycle require the same firmware version. Using Di2 components with different firmware versions may cause malfunctions
- Use Di2 system checker to update component firmware from http://e-tubeproject.shimano.com/
Product Specifics
Today's Stock Status
10+ Available to ship in 2-4 Business Days
UPC: 192790597195
EAN: Not available
Manufacturer Part Number: Does Not Apply
CY8903
154993-Q0-L
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.6 ★★★★★
Based on 21 reviews
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Product Reviews
★★★★★ 5
Game changer! Literally
I use this monitor for work and I don’t need to turn my face to see the edge of the screen. Absolutely love it! Bright enough but not too much to bother my sight! Nice color, monitor not too heavy but still good quality. Lots of value in this purchase! Highly recommend to my colleagues and friends!
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Reviewed in the United States on May 27, 2025
★★★★★ 5
Screen perfection
This screen was perfect for my son’s gaming, the resolution, sound quality, and color accuracy is great. The gaming capability runs quick and refresh rate is fast.
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Reviewed in the United States on January 18, 2025
★★★★★ 3
Monitor stopped working after a few months
I work from home. I bought 2 of the 27’ monitors at the end of April and loved them. I used them for 2 months before going out of state. I came back a few days ago, everything was working until one of the monitors suddenly went dark and it won’t turn back on no matter what I do. The laptop does detect that it’s plugged in.
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Reviewed in the United States on November 8, 2024
★★★★★ 5
Great value, great quality!
The quality is great, value is great. Very easy to plug in and use, along with my laptop.
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Reviewed in the United States on October 2, 2024
★★★★★ 5
Exceptional
Size: 22, Size: 22
Great quality and price. Monitors are exceptional. Would buy again without question. Screens are quite resilient, great picture. I bought three and use them in a multi Monitor setup for my work laptop, I needed something to view wireing diagrams and scan tool information qt the same time. If your a Service Technician looking for a multi Monitor set up would strongly recommend this Monitor.
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Reviewed in the United States on April 25, 2026
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