Computer giant Dell has hit back at claims that solid state drives (SSDs) are being returned at an alarming rate.

Earlier this week, Avian Securities published research, which said that an unnamed large manufacturer was seeing return rates of 20 to 30 percent on SSD-based notebooks, thanks to failures and performance issues.

The Avian study said that returns due to technical failure ran at 10 to 20 percent, 10 times higher than failure rates for conventional drives. Another 10 percent were due to lack of expected performance gains, the report said.

At the time of the original article, Dell declined to comment on failure rates, but a Dell spokeswoman admitted that "SSD technology is new and will have growing pains."

A few days later however, the continuing publicity provoked a harsher reaction from the PC maker, which said the information "has no basis in reality."

"Here's the real story: the 20 - 30 percent failure and return rates cited by Avian Securities don't even vaguely resemble what's happening in our business," wrote Dell's chief blogger, Lionel Menchaca. "It's also true that Avian did not contact us while doing their research. Said another way, it's just not true."

"Our global reliability data shows that SSD drives are equal to or better than traditional hard disk drives we've shipped. Beyond that, return rates for SSDs are in line with our expectations for new technology and an order of magnitude better than rates reported in the press."

Flash-based SSDs are intended to be significantly faster than disk-based drives, because of the lack of moving parts, among other factors. Menchaca said that Dell remained "committed to SSD technology and see it as a key technology that will advance mobile computing overall."