The Odac and the new grace use mini and micro USB connectors respectively. Neither use the more common A/B USB cable. Buying a high end gold plated diamond encrusted cryogenically tempered llama intestine insulated camel hair dialectic kissed by God cable may be an issue
If you are talking about common, micro USB is the most common cable out there as every phone that isn't an Apple phone uses the connector. Some Sony cameras use the connector, too. Most portable DAPs use the micro connector. The mini connector used by the ODAC is stupid and needs to change, whether you like using "diamond encrusted god cables" or just a good value Anker usb micro cable. Nobody should be designing with mini links anymore. The only advantage it has is connector strength (you don't need locking pins that fail on the mini because of it's shape). There are lots of audiophile micro cables if you want to go that direction and believe or know that it makes a difference. If you get an expensive mini cable, you'll probably have one thing you use it with, the ODAC. The Grace m9xx uses the much more common micro connection.