| Model | DS-K2601-G | DS-K2602-G | DS-K2604-G |
| Power supply | 100 ~ 240 VAC | ||
| Power consumption (with Load) |
≤ 50 W | ≤ 100 W | ≤ 100 W |
| Power consumption (Without Load) |
≤ 4 W | ||
| Processor | 32-bit | ||
| Storage | 32 M | ||
| Communication | TCP/IP, RS-485, Wiegand (W26/W34) | ||
| Capacity | 100,000 cards 300,000 events |
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| LED Indicator | Power supply status, communication status, and work status | ||
| Built-in Clock | Support | ||
| Accessible Card Reader | 2 card readers (RS-485 interface), and 2 card readers (Wiegand interface) |
4 card readers (RS-485 interface), and 4 card readers (Wiegand interface) |
8 card readers (RS-485 interface), and 4 card readers (Wiegand interface) |
| Input interface | Alarm input × 4, door contact × 1, exit button × 1, case input × 2, tamper alarm × 1 |
Alarm input × 4, door contact × 2, exit button × 2, case input × 4, tamper alarm × 1 |
Alarm input × 4, door contact × 4, exit button × 4, case input × 8, tamper alarm × 1 |
| Output interface | Lock relay × 1, alarm relay × 2 |
Door relay × 2, alarm relay × 4 |
Lock relay × 4, alarm relay × 4 |
| Working temperature | -20 °C to +65 °C (-4 °F to +149 °F) | ||
| Working humidity | 10% to 90% (Non-condensing) | ||
| Dimensions (L × W × H) | 398 mm × 474 mm × 100 mm (15.7" × 18.7" × 3.9") | ||
| Approval | CE, FCC, CB, UL294 | ||