InnoLight: Manufacturer
T-OS4CNT-NBK: Likely the manufacturer's specific part number/model code.
400Gb/s: Data rate (400 Gigabits per second).
OSFP: Form factor (Octal Small Form-factor Pluggable).
FR4: Standard for 400G over 4 wavelengths (lanes) of light.
2km: Maximum transmission distance.
SMF: Fiber type (Single-Mode Fiber).





