1. פּראָדוקט איבערview
The OREI BK-21 is an advanced 8K 2x1 HDMI Switch designed to streamline your audio-visual setup. This device allows you to connect two HDMI source devices to a single HDMI display, providing seamless switching between inputs. It supports high-resolution video and audio formats, making it ideal for gaming, home theater, and professional applications.

Figure 1: OREI 8K 2x1 HDMI Switch (Model BK-21)
די הויפּט פֿעיִקייטן אַרייַננעמען:
- Supports resolutions up to 8K@60Hz, 4K@120Hz, and 1080p@240Hz.
- HDMI 2.1 and HDCP 2.3/2.2/1.4 compliant.
- High Speed 48Gbps Video Bandwidth.
- Supports HDR10+, HDR10, Dolby Vision, 3D, and CEC.
- Features VRR (Variable Refresh Rate), ALLM (Auto Low-Latency Mode), and QFT (Quick Frame Transport).
- Dual switching options: Automatic and Manual.
2. פּעקל אינהאַלט
ביטע זיכער מאַכן אַז אַלע זאכן זענען פאַראַן אין פּעקל:
- 1x OREI BK-21S HDMI Switcher
- 1 קס וסב מאַכט קאַבלע
- 1x באַניצער מאַנואַל

פיגורע 2: פּעקל אינהאַלט
3. פּראָדוקט פֿעיִקייטן
The OREI BK-21 HDMI Switch offers a robust set of features for high-performance audio and video distribution:
- הויך האַכלאָטע שטיצן: Experience stunning visuals with support for 8K@60Hz, 4K@120Hz, and 1080p@240Hz.
- Advanced HDMI Standards: Fully compliant with HDMI 2.1 and HDCP 2.3/2.2/1.4 for broad compatibility and secure content transmission.
- הויך באַנדווידט: Supports 48Gbps video bandwidth for uncompressed high-resolution video.
- Dynamic HDR Support: Compatible with HDR10+, HDR10, and Dolby Vision for enhanced contrast and color.
- Gaming Optimized Features: Includes VRR (Variable Refresh Rate), ALLM (Auto Low-Latency Mode), and QFT (Quick Frame Transport) for a smoother gaming experience.
- פולשטענדיק אַודיאָ שטיצן: Delivers exceptional sound quality with LPCM, Dolby True HD, DTS HD Master Audio, Dolby-AC3, and DTS7.1.
- ברייט קאַמפּאַטאַבילאַטי: Works with a variety of HDMI devices such as PlayStation 5, Xbox, Roku 4, 4K TV, Amazon Fire TV, Ultra Projector, PS4, Apple TV, Cable box, Blu-ray player, DVD player, PC, and STB.

Figure 3: Supported Video Standards

Figure 4: Audio Support

Figure 5: Wide Device Compatibility
4. Connections and Setup
Follow these steps to connect your OREI BK-21 HDMI Switch:
- פאַרבינדן HDMI קוואלן: Plug your two HDMI source devices (e.g., gaming console, Blu-ray player) into the HDMI IN1 and HDMI IN2 ports on the switch.
- פאַרבינדן צו ווייַז: Connect an HDMI cable from the HDMI OUT port on the switch to the HDMI input on your display (TV, monitor, projector).
- מאַכט קשר: Connect the provided USB cable to the POWER port on the switch and to a USB power source (e.g., a USB wall adapter, a USB port on your TV or media device). The switch requires 5V DC power.

פיגור 6: הינטערשטע פּאַנעל קאַנעקשאַנז
For optimal performance, use high-quality HDMI 2.1 cables under 10 feet. For longer lengths, OREI Fiber Optic HDMI cables are recommended.
Video 1: OREI Direct's overview of the 8K 2x1 HDMI Switch, demonstrating its features and connections.
5. אַפּערייטינג ינסטרוקטיאָנס
The OREI BK-21 HDMI Switch offers both manual and automatic switching modes:
- מאַנואַל באַשטימען: Press the button on the top of the switch to cycle between HDMI IN1 and HDMI IN2. The corresponding LED indicator (1 or 2) will illuminate to show the currently active input.
- אָטאַמאַטיק סוויטשינג: The switch supports automatic detection of active HDMI sources. When a new source is activated, the switch can automatically switch to that input. This feature can be enabled or disabled as per user preference to prevent unintended switching.

Figure 7: Top Panel with Selection Button and Indicators
6. טעכניש ספּעסאַפאַקיישאַנז

Figure 8: Compact Size and Dimensions
| שטריך | באַשרייַבונג |
|---|---|
| מאָדעל נומער | BK-21 |
| פּראָדוקט דימענשאַנז | 2 X 4 X 0.5 אינטשעס |
| פּונקט וואָג | 2.8 אונסעס |
| קאָליר | שוואַרץ |
| קאַנעקטער טיפּ | HDMI |
| טיפּ קאַבלע | HDMI |
| HDMI ווערסיע | HDMI 2.1 |
| HDCP ווערסיע | HDCP 2.3/2.2/1.4 |
| מאַקס האַכלאָטע | 8K@60Hz, 4K@120Hz, 1080p@240Hz |
| ווידעא באַנדווידט | 48 גבפּס |
| HDR שטיצן | HDR10+, HDR10, Dolby Vision |
| גיימינג פֿעיִקייטן | VRR, ALLM, QFT |
| אַודיאָ פֿאָרמאַטירונגען | LPCM, Dolby True HD, DTS HD Master Audio, Dolby-AC3, DTS7.1 |
| קאַמפּאַטאַבאַל דעוויסעס | Blu-Ray Player, DVD Player, Gaming Console (PS5, Xbox), PC, Television, Roku, Amazon Fire TV, Ultra Projector, Apple TV, Cable box, STB |
7. טראָובלעשאָאָטינג
If you encounter issues with your OREI BK-21 HDMI Switch, please refer to the following common troubleshooting steps:
- קיין סיגנאַל:
- Ensure all HDMI cables are securely connected to both the source devices, the switch, and the display.
- Verify the USB power cable is connected and the power LED on the switch is illuminated.
- Try connecting the HDMI source directly to the display to confirm the source and display are working correctly.
- Test with different HDMI cables, especially high-quality HDMI 2.1 certified cables.
- Ensure the correct input is selected on your display.
- פליקערנדיק אדער איבעררייסנדיק סיגנאַל:
- Check cable lengths; for 8K/4K@120Hz, shorter, high-quality HDMI 2.1 cables are crucial.
- זיכער מאַכן אַז די מאַכט צושטעל איז סטאַביל און גענוג.
- Reduce the resolution or refresh rate of the source device to see if the issue persists.
- אַודיאָ ישוז:
- Confirm that your display's audio settings are correctly configured.
- קאָנטראָלירט די אַודיאָ אַרויסגאַנג סעטטינגס אויף אייער מקור מיטל.
- Ensure the HDMI cables support audio transmission.
- Automatic Switching Not Working:
- Some devices may not trigger auto-switching effectively. Try manual switching using the button on the switch.
- Ensure the auto-switching feature is enabled if applicable (refer to specific product manual for details on enabling/disabling).
8. קער און וישאַלט
To ensure the longevity and optimal performance of your OREI BK-21 HDMI Switch, please follow these guidelines:
- רייניקונג: Use a soft, dry cloth to clean the device. Avoid using liquid or aerosol cleaners.
- סטאָרידזש: האַלט דעם אַפּאַראַט אין אַ קיל, טרוקן אָרט אַוועק פון דירעקט זונשייַן און עקסטרעמע טעמפּעראַטורן.
- האַנדלינג: באַהאַנדלט דאָס אַפּאַראַט מיט פֿאָרזיכט. פֿאַרמײַדט עס צו לאָזן פֿאַלן אָדער אויסשטעלן עס צו שטאַרקע קלאַפּן.
- ווענטילאַטיאָן: Ensure the device has adequate ventilation to prevent overheating. Do not block any ventilation openings.
- מאַכט: Always use the provided USB power cable. Disconnect power during electrical storms or when unused for long periods.
9. גאַראַנטיע און קונה שטיצע
The OREI BK-21 HDMI Switch comes with a 1 יאָר גאַנץ וואָראַנטי. For any technical assistance, troubleshooting, or warranty claims, please contact OREI Support.
פֿאַר ווייטערדיקע הילף, ביטע באַזוכט די Official OREI Store on Amazon אדער זעט די קאָנטאַקט אינפֿאָרמאַציע וואָס איז צוגעשטעלט אין אייער פּראָדוקט פּאַקאַדזשינג.





