littleBits w16 NAND

Bought this to build a latch circuit and it behaves exactly like a proper NAND gate should—output stays ON until both inputs fire, then it drops off. The two input slots snap in fine alongside my other bits.

Works exactly as described, the NAND logic is clean and the little LED indicator makes troubleshooting my circuits way easier. Only gripe is the price for a single gate, but it snaps in fine with the rest of my bits.