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⚡ Power your CAN FD projects with confidence and open innovation!
The DSD TECH SH-C31A USB-CAN adapter is a professional-grade, open-source hardware device based on CANable 2.0, delivering 5 Mbps CAN FD data transfer with zero frame loss. It features industrial protections like resettable fuses and TVS clamps, screw terminal bus connections, and factory-installed candleLight firmware for immediate use. Supported by unlimited technical assistance and a 1-year warranty, it’s trusted by over 100,000 users worldwide.








| Amazon Bestseller | #24,665 in Computers (See Top 100 in Computers) #234 in Computer Network Adapters |
| Asin | B0CDGD1FSH |
| Brand | DSD TECH |
| Color | green |
| Compatible Devices | Desktop, Laptop |
| Country Of Origin | China |
| Customer Reviews | 4.3 4.3 out of 5 stars (73) 4.3 out of 5 stars |
| Data Link Protocol | USB |
| Data Transfer Rate | 5 Megabits Per Second |
| Global Trade Identification Number | 00794251080989 |
| Hardware Interface | USB |
| Item Weight | 0.02 Kilograms |
| Manufacturer | DSD TECH |
| Mfr Part Number | SH-C31A |
| Model Number | SH-C31A |
| Number Of Items | 1 |
| Number Of Packs | 1 |
| Unit Count | 1.0 Count |
| Upc | 794251080989 |
| Warranty Description | 1 Year Warranty |
User
CAN通信状態の確認に利用
LINKG4XのCAN通信状態確認用に利用通信内容についての取得については問題なく出来ました。
User
CANable 2.0 モノの中ではケースに入っているのが利点かね?
2025年2月現在。最初、使い方がわからなかったので認識しているかわからずファーム書き換えを試行。他のレビューにあるような、DFUモードにしての、ST社の STM32CubeProg での読み書きは問題なし。バイナリデータで見える範囲では、元から入っているファームウェアは同じもののように見える。後に、Windows10で、USBポートに挿してドライバなど用意することなくシリアルデバイスとして認識。COMポートを1つ消費。CANable 2.0 デバイスということで、Cangaroo の CANable 2.0 対応のものですぐ認識。>canable.ioケースに入っているのとディップスイッチを使っている分、大きい。USBポートに挿すとケースが邪魔で他のものを並べて挿せない。USB延長ケーブルで伸ばして使うのが楽でいい。なので、延長ケーブルとセットで購入。この使い方だと USB-A じゃなく USB-B が付いていて欲しいところ。USBハブは挟まないほうがよさそう。CANable 2.0 のアクセス方法がわからないのでとりあえず Cangaroo 頼り。こういうオープンソースを元にした製品ってライセンスってどうなってるんでしょうね?
User
ケース入りでこの値段ならOK
同封されていた説明書通りにソフトをアップデートしました。ArduinoのCAN busシールドでsend_ramdomから、cangarooで通常のCANの動作確認できた。CAN FDは未確認。適当な基板がなく思案中。CANトランシーバーをVIOのあるものに変更して、VIO=3.3Vとして欲しかった。
User
使えます
ネットワークカメラのセンサーデータの監視に使ってみました。とりあえず使えています。
User
Does the job
Works flawlessly on a raspberry pi with Home Assistant.
User
Works with CANgaroo, but required a WinUSB/GUID fix
I had an issue using this SH-C31A with CANgaroo under Windows 11. This may be specific to my adapter/firmware, but I reproduced the same issue on two different PCs.On both computers, Windows did not automatically install a usable driver for the CAN interface. I installed WinUSB using Zadig (select canable2 gs_usb (Interface 0), USB VID:PID 1D50:606F). However, CANgaroo still could not see the adapter.I found that the DeviceInterfaceGUIDs registry value created during the Zadig installation did not match the GUID expected by CANgaroo/CandleAPI. Interestingly, Zadig generated a different GUID on each of my two PCs.If you have the same problem, this is what worked for me:Install WinUSB for canable2 gs_usb (Interface 0) using Zadig.Open PowerShell as Administrator and run:$dev = Get-PnpDevice -PresentOnly |Where-Object {$_.InstanceId -like 'VID_1D50&PID_606F&MI_00'}$path = "HKLM:\SYSTEM\CurrentControlSet\Enum$($dev.InstanceId)\Device Parameters"Set-ItemProperty -Path $path-Name DeviceInterfaceGUIDs `-Value '{c15b4308-04d3-11e6-b3ea-6057189e6443}'Unplug and reconnect the SH-C31A, then restart CANgaroo.After doing this, CANgaroo immediately detected the adapter as candle0_ch0, and CAN reception works correctly.Again, I don't know whether this affects all SH-C31A adapters or only the firmware/version of mine, but hopefully this helps anyone experiencing the same issue.
User
DSD makes good stuff
Works great for digging into can protocol. Claude can use it as well. Would recommend. Love all DSD stuff
User
Ottimo convertitore
Ho preso questo adattatore da USB a CAN per un progetto che sto preparando da collegare alla mia auto, ed è stata una scelta eccellente. Il dispositivo si è rivelato subito pratico ed efficace, con una configurazione molto semplice e intuitiva. È compatibile con diverse piattaforme, e ho potuto utilizzarlo senza problemi sia su Windows che su Linux, con un’ottima integrazione nel mio ambiente di lavoro.La qualità costruttiva è sorprendentemente buona per un prodotto di questa fascia di prezzo. Il corpo è robusto, compatto e abbastanza resistente per un utilizzo frequente. Durante l’uso, la connessione è stabile e affidabile, e il dispositivo è riuscito a gestire flussi di dati senza interruzioni o perdite.Anche l’aggiornamento del firmware è stato semplice, nella parte posteriore sono presenti due interruttori in miniatura, uno per attivare la resistenza da 120 ohm per il terminatore, e l’altro per avviarlo in modalità boot e scaricare quindi il firmware aggiornato.Finora si è rivelato un ottimo aiuto, e non posso che consigliarlo.
User
Perfect for can analysis or sending commands
Worked great straight from the box. Could.not have been better.
Trustpilot
2 days ago
5 days ago