應該有支援同一卡多插

Q: Do I have to use two of the same hardware tuner card?

A: No. The tuner cards can be different models from the same manufacturer or even from different manufacturers. If using two cards based on the same basic design or chipset, the drivers for the cards need to be multiple-tuner compliant (basically, the drivers need to support a way for applications like Beyond TV to tell them apart).
Q: What is the limit on the number of tuners you can use with Beyond TV 3.5?

A: Beyond TV supports two tuners for free. To use more than 2 tuners, you will need to purchase an additional tuner license which can be found here. Once you receive the new license, you must go through the set up wizard, enter the key, and then continue through the setup as you did your first two tuner cards.

另外試過SageTV GB-PVR 都可以一卡多插

建議買pvr-500mce