The deal was spotted by Videocardz.com, and features the Zotac RTX 4060 Twin Edge OC White, which is a custom version with decent factory-overclock. The $279 is just $20 below the official $299 Nvidia MSRP but still enough to get it close to the AMD Radeon RX 7600 (non-XT). In general, the Radeon RX 7600 is just slightly slower than the RTX 4060, but the RTX 4060 has DLSS 3 Frame Generation and ray tracing performance as its ace up the sleeve.
You can check out the deal over at Newegg.com.