1. Introducere
Welcome to the user manual for your new LTC NB681 Nimbleback Wired 65% Mechanical Keyboard. This guide provides detailed instructions on setting up, operating, maintaining, and troubleshooting your keyboard to ensure optimal performance and longevity. Please read this manual thoroughly before using the product.

Figure 1: LTC NB681 Nimbleback Wired 65% Mechanical Keyboard
Video 1: LTC NB681 65% Hot Swappable Keyboard OverviewAcest videoclip oferă o imagine generalăview a caracteristicilor și designului tastaturii.
Video 2: LTC Nimbleback NB681 Keyboard. This video showcases the keyboard's aesthetics and some functionalities.
2. Caracteristici cheie
The LTC NB681 Nimbleback Keyboard is designed with a range of features to enhance your typing and gaming experience:
- Compact but Practical 65% Layout: Ultra-compact design with 68 keys, balancing functionality with space-saving. Includes practical arrow, navigation, and control keys.
- Comutatoare înlocuibile la cald: Features a hot-swap PCB, allowing free replacement of 3-pin/5-pin MX-style switches (e.g., Gateron, Kailh). Equipped with quiet linear red switches for nimble reactions and quiet typing.
- 2 USB 2.0 Ports and Type-C Wired Connection: Two built-in USB passthrough ports for connecting peripheral devices like a mouse or flash drive, or for charging mobile devices. The Type-C wired connection ensures high-speed and stable data transmission.
- Dynamic RGB Backlight: Offers 18 preset backlight modes with 5 adjustable brightness and flowing speed levels, providing gorgeous color schemes and reactive effects.
- Professional Software Support: Customize keypress combinations, assign macros, and personalize RGB lighting effects using the powerful LTC drive software. Compatible with Windows 7/8/10, iOS, and Mac systems.

Figure 2: Visual representation of key features including 68-keys, 2 USB ports, detachable Type-C cable, hot-swappable switch, ergonomic angle, RGB backlit, stand-alone arrow keys, and anti-ghosting.
3. Configurare
Follow these steps to set up your LTC NB681 keyboard:
- Unboxing: Carefully remove the keyboard and all accessories from the packaging. Ensure you have the keyboard, USB-C cable, and any included tools (e.g., keycap puller, switch puller).
- Conectați cablul USB-C: Plug the USB-C end of the provided cable into the Type-C port on the keyboard. Connect the other end (USB-A) to an available USB port on your computer.
- Recunoaștere inițială: Calculatorul dumneavoastră ar trebui să detecteze și să instaleze automat driverele necesare. Acest lucru poate dura câteva momente.
- Pozitionare: Place the keyboard on a stable, flat surface. You can adjust the typing angle using the foldable feet on the underside of the keyboard for ergonomic comfort.
- Instalare software (opțională, dar recomandată): For advanced customization, download the LTC drive software from the official LTC website. Install it on your Windows or Mac system to remap keys, assign macros, and customize RGB lighting.
Video 3: LTC NB681 Keyboard Unboxing! This video demonstrates the unboxing process and shows the included accessories.

Figure 3: Close-up of the keyboard's 2 built-in USB 2.0 passthrough ports and the detachable Type-C wired connection port.
4. Utilizarea tastaturii
4.1 Funcții de bază
- Tastare standard: The keyboard functions as a standard QWERTY keyboard.
- Arrow, Navigation, and Control Keys: Despite its compact size, the NB681 includes dedicated arrow keys and essential navigation/control keys for convenience.
4.2 Controlul iluminării de fundal RGB
The NB681 features dynamic RGB backlighting with multiple customization options:
- Modificarea modurilor: Presa Fn + \| (pipe key) to cycle through 18 preset backlight modes.
- Reglarea luminozității: Utilizare Fn + săgeată sus pentru a crește luminozitatea și Fn + Săgeată în jos pentru a reduce luminozitatea (5 niveluri).
- Ajustarea vitezei: Utilizare Fn + Săgeata la stânga to decrease flowing speed and Fn + Săgeata dreapta to increase flowing speed (5 levels).

Figura 4: Afișajul tastaturiiasing its dynamic 16.8 million RGB backlight with 19 modes and 5 brightness/speed levels.
4.3 Comutatoare înlocuibile la cald
The hot-swappable design allows you to easily change switches without soldering:
- Îndepărtați capacul tastelor: Folosește extractorul de taste inclus pentru a îndepărta ușor tastele dorite.
- Scoateți comutatorul: Folosește extractorul de comutator inclus pentru a prinde cu grijă comutatorul și a-l trage drept în sus.
- Introduceți un comutator nou: Align the pins of the new 3-pin or 5-pin MX-style switch with the holes on the PCB. Press firmly until it clicks into place.
- Înlocuiți capacul tastelor: Puneți capacul tastei înapoi pe noul comutator.

Figure 5: Close-up demonstrating the hot-swappable switch feature, allowing easy replacement of 3-pin or 5-pin mechanical switches.
Video 4: LTC NB681 Red Switch Keyboard Sound Test. This video provides an audio demonstration of the keyboard's red switches.
4.4 Professional Software Customization
The dedicated software allows for in-depth customization:
- Remaparea cheilor: Change the function of any key to suit your preferences.
- Macro Assignment: Create and assign complex macros for gaming or productivity tasks.
- Personalizare iluminare RGB: Design your own lighting effects, colors, and patterns beyond the preset modes.

Figure 6: Screenshot showing the professional software interface for customizing RGB backlight, remapping keys, and assigning macros.
5. Întreținere
Întreținerea corespunzătoare asigură longevitatea și performanța tastaturii dumneavoastră:
- Curățare regulată: Use a soft brush or compressed air to remove dust and debris from between the keycaps. For deeper cleaning, remove keycaps and wipe the surface with a slightly damp Asigurați-vă că tastatura este deconectată înainte de curățare.
- Îngrijire comutatoare: The hot-swappable design makes switch replacement easy if a switch becomes faulty or if you wish to try different switch types. Avoid excessive force when inserting or removing switches to prevent damage to the PCB sockets.
- Organizare de cabluri: Keep the USB-C cable untangled and avoid sharp bends to prevent internal wire damage.
6. Depanare
If you encounter issues with your LTC NB681 keyboard, try the following steps:
- Tastatura nu răspunde:
- Asigurați-vă că este conectat corect cablul USB-C atât la tastatură, cât și la computer.
- Încercați să conectați tastatura la un alt port USB al computerului.
- Testați tastatura pe un alt computer pentru a determina dacă problema este cu tastatura sau cu computerul original.
- Luminile RGB nu funcționează/nu sunt corecte:
- Check the brightness settings using Fn + Săgeată sus/jos.
- Comutați prin diferite moduri de iluminare folosind Fn + \|.
- If using the software, ensure the lighting profiles are correctly applied and the software is up to date.
- Tastele nu se înregistrează/Tastare dublă:
- This could indicate a faulty switch. Use the switch puller to remove the problematic switch and replace it with a spare or a known good switch.
- Asigurați-vă că întrerupătorul este complet așezat în soclu.
- Software-ul nu recunoaște tastatura:
- Ensure the keyboard is connected directly to the computer (avoiding USB hubs if possible).
- Reporniți computerul și software-ul.
- Reinstall the LTC drive software.
If these steps do not resolve the issue, please contact LTC customer support for further assistance.
7. Specificații
| Caracteristică | Descriere |
|---|---|
| Numărul de model | NB681 |
| Aspect | 65% (68 de taste) |
| Conectivitate | USB tip C cu fir |
| Comutatoare | Hot-Swappable (3-pin/5-pin MX-style compatible) |
| Iluminare de fundal | RGB (18 preset modes, 5 brightness/speed levels) |
| Passthrough USB | 2 x porturi USB 2.0 |
| Compatibilitate | Windows 7/8/10, iOS, Mac |
| Greutatea articolului | 2 lire sterline |
| Dimensiuni | 14.96 x 6.14 x 1.92 inci |
| Producător | LTC |

Figure 7: Comparison of the ultra-compact 68-key design with a full-size keyboard, highlighting its space-saving benefits.

Figure 8: Illustration of the ergonomic design with foldable feet for 10-degree and 5-degree typing angles, and anti-slip pads.
8. Garanție și asistență
For detailed warranty information and customer support, please refer to the official LTC website-ul sau documentația achiziției dumneavoastră.
You can also find additional resources and a downloadable PDF user manual here: Manual oficial de utilizare (PDF)
For more products and support, visit the LTC Store on Amazon.





