Note that many of these items might be on the same rebate.
$11 898745068924 35-200-097 Rosewill RFBF-131411 Case Fan
$10 898745012996 15-166-014 Rosewill 4+1 VIA USB 2.0 PCI Adapter Model RC-103
$15 898745008456 35-200-014 Rosewill RCX-Z1 Long life ball bearing for over 45,000/hrs CPU Cooler
$11 898745072525 17-182-291 Rosewill Armer RX100-PU3-25B USB 3.0, 2.5" SATA I/II
$15 840951116784 17-182-380 Rosewill RHB-346 USB 3.0 4 Ports Hub with Individual Power Switch
$19 840951114322 17-182-365 Rosewill RHB-344 USB 3.0 4-Port Hub and Fast Charging with Voltage & Current Display
The fine print says "limit one rebate per product line per person..." There's no guidance as to what a "product line" is. At best, it might mean something intuitive like "USB hubs" vs. "HSF products," and you could get a rebate on (say) one but not both types of USB hubs, etc. At worst, "product line" could mean "consumer products," which would limit rebates to one out of the entire list. Possibly, "product line" might refer to the first two digits of the part number, which would then include the USB-SATA enclosure in the same line as the USB hubs, and the case fan in the same line as the CPU fan...
Gonna grab a few anyway and see what happens.