A nice touch is the gentle click sound this unbranded relay makes, giving clear feedback when it switches.
1Pce SMC-SRN-24VDC 152mA 24VDC Safety Relay Control Unit New
What stands out about the unbranded brand is the simple color scheme, which helps you match it with other components easily.
You will find that this unbranded relay pairs well with generic controllers, without any branding conflicts or odd fit issues.