| Brand | Model | Width x Height | Base width | Thickness ↓ | Weight | Source | Created |
|---|---|---|---|---|---|---|---|
| Yinhe | 898 (JPEN) | 135 x 143 mm | Source | about 10 years ago | |||
| Yinhe | T11 | 150 x 159 mm | Source | almost 10 years ago | |||
| Yinhe | Earth-3 | 152 x 157 mm | 93mm | 83g | Source | about 9 years ago | |
| Yinhe | MC-2 CPEN | 151 x 163 mm | 88mm | 86g | Source | about 5 years ago |