➀ SD Express cards are finally starting to hit the market after years of delay; ➁ The new cards, including those from Samsung and Silicon Power, offer significantly faster read/write speeds than current models; ➂ However, these next-generation cards are primarily aimed at industrial and professional markets, not consumer markets; ➃ The lack of progress in traditional SD card technology has led to many consumer electronics products放弃 using SD cards; ➄ There is hope that high-performance SD cards may find a market in X86 handheld devices.