Best Single Slot Graphics Card

My ITX board will have 1 PCIe Slot, does this mean I can only use single slot GPUs? as far as I understand this Dual Slot GPUs just block the

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single slot shelf brackets GPU vs CPU — What Is the The Mini Tower BCDT01-ELWS workstation is compatible with a single- or dual-slot NVIDIA® T400 or T1000 GPU

single slot shelving Slot power · x1 cards are limited to A at +12 V and 10 W combined · x4 and wider cards are limited to A at +12 V and 25 W combined · A full-