BYKSKI Full Cover GPU waterblock FOR Sapphire Radeon R9 390 Nitro/ 390X Tri X Video Card. P/N:A SP39TRIX X|Fans & Cooling| - AliExpress
Radeon R9 390 im Test: AMDs neue alte Grafikkarten bekommen einen Nitro-Boost - Golem.de
Sapphire R9 390 Nitro | Gpu Backplate | ColdZero
SAPPHIRE NITRO Radeon R9 390 Tri-X OC Version w/ backplate (UEFI) Video Card 100382NTOC-2L - Newegg.com
Friends Sapphire R9 390 Nitro died suddenly ~ 2.5 years later after buying second hand. No Post no fans spinning. After 4 years in Service RIP. It is a beautiful beast. : r/Amd