DRAM-Less
Review:
https://www.anandtech.com/show/15139/the-adata-xpg-sx6000-pr…
Other stores
Specifications:
• Capacity: 256GB
• Interface: PCIe Gen3 x4
• Form Factor: M.2 2280
• NAND Flash: 2nd generation 3D TLC
• Read: Up to 2100MB/s
• Write: Up to 1500MB/s
• Controller: Realtek
• Operating temperature: 0°C - 70°C
• Storage temperature: -40°C - 85°C
• Shock resistance: 1500G/0.5ms
• MTBF: 2,000,000 hours
• Dimensions (L x W x H): 22 x 80 x 2.15mm
• Weight: 8g
You forgot the links for the other websites. Looks like PP is the best at $112.19 delivered (I did Ascent as your main deal because that's the link you used).