| Performance Specification |
| Parameter | Unit | Manual Variable Optical Attenuator |
| Wavelength Range | nm | 1260~1610 |
| Attenuation Range | dB | 50 |
| Insertion Loss (Without Connector) | dB | 0.8 |
| Attenuation Resolution | dB | 0.1 |
| Wavelength Dependent Loss (1520 - 1610 nm ，≤20dB) | dB | 0.4 |
| Temperature Dependent Loss（≤20dB) | | 0.4 |
| Return Loss | dB | 45 |
| PDL（≤20dB) | dB | 0.2 |
| Optical Power | mW | 500 |
| PMD | ps | 0.2 |
| Operating Temperature | ℃ | 0 to +70 |
| Storage Temperature | ℃ | -40 to +85 |
| Fiber Type | Corning SMF-28e |
| Package Dimensions | mm | Ø5.6X20.5 |