Translating the threads and some comments from the official account: Some cases seem to have received a price drop, K17 for example is 99 rmb now.
[SPOILER]K30 - 230x205mm motherboard support, 1U PSU, 50mm CPU cooler. Design is meant for R5 and i5s.
K39v3 - 0.2L size increase, motherboard support increased to 230x205mm, GPU support increased to 200mm K49v2 - 4.9L, 230x205mm motherboard, 110mm CPU cooler, 1U PSU.
K55 Pro - A standalone add-on for the K55, an outershell that doesn't have any screw holes or panel gaps, part of the new pro series
K59 - Console style case, 5.9L, SFX and ITX, 310mm GPU. 47mm CPU cooler clearance at least. Also some extra space for GPU at at least 50mm
K66v2 - motherboard size increased 245x205mm, GPU increased to 200mm, also has a handle now. 55mm CPU cooler, uses ATX PSU's fan for exhaust
K70 - K77 but shorter GPU at 24cm, supports two 92x25 fans, SFX-L PSU reduces GPU length to 20cm, tail is gone. (think conswole pig tail if you don't know what the K77 tail looks like)
K77v2 - Tail is gone, 2x 9225 fan support, 230x205 motherboard support, ATX and SFX PSU supported. 9.7L
K133 - full size MATX, ATX PSU, 330mm GPU, 135mm CPU cooler, 6 92mm fan spots, dimensions are 34x15x26, handle bar available, both horizontal and vertical placement possible [/SPOILER]
