Q: How to judge the high-speed and low-speed slot of NE20?
A: NE20-2 only has two slots which are all high-speed; NE20-4 has four slots, of which No. 1, 2 and 4 are high-speed, and No.3 is low-speed; NE20-8 has eight slots, of which No. 1, 2 and 4 are high-speed, and No. 3, 5, 6, 7 and 8 are low-speed. High-speed slots could use either high-speed cards or low-speed ones, but low-speed slots could only use low-speed cards.