The HP Mono LaserJet M107A is a compact and reliable printer built for everyday business needs. Because of its small design, it fits perfectly in tight workspaces. As a result, it is an excellent choice for home offices and small businesses. This printer delivers sharp and professional black-and-white prints with every page. Moreover, it offers fast printing speeds, helping you save valuable time on daily tasks. Therefore, it ensures smooth workflow without unnecessary delays. The HP Mono LaserJet M107A is simple to set up and easy to operate. In addition, its straightforward controls make printing more efficient for everyone. With reliable performance and consistent output, you can always count on this printer. Although it is compact, the printer does not compromise on quality. For instance, it produces crisp text and detailed graphics, making reports and documents look professional. Furthermore, it uses HP’s advanced printing technology to ensure high precision. Not only is this printer efficient, but it is also designed to reduce energy usage. Because of its energy-saving features, you can print more while keeping costs low. Consequently, it is both an eco-friendly and budget-friendly option. Overall, the HP Mono LaserJet M107A combines performance, durability, and convenience in a single device. In other words, it is the perfect solution for users who need fast, clear, and reliable printing. Specifications: Print Technology : Monochrome Laser Print Speed : Up to 20 Papers/minute Print Resolution : 1200 x 1200 DPI Supported Media Sizes : A4, A5, B5, and Custom Sizes from 76×127 to 216×316 mm Connectivity : USB 2.0 Memory : 64MB Monthly Duty Cycle : Up To 10000 pages.
The HP Color LaserJet Enterprise M553dn B5L25A is a fast and reliable A4 colour laser printer. First, it prints sharp text and vibrant colour up to 1200 × 1200 dpi. This helps teams produce professional documents with ease. The printer runs at up to 38 ppm, keeping offices productive. In addition, it supports automatic duplex printing and has dual paper trays. Therefore, you can handle multi-page jobs without refilling paper frequently. USB, Ethernet, and mobile printing with HP ePrint, Apple AirPrint, or Mopria make connections simple. Moreover, the printer uses HP JetIntelligence toner for efficient page yields. The 4-line LCD display makes controls intuitive. For example, teams can manage complex print tasks and use built-in security features for safe office operation. Specifications: A4 colour laser printing up to 1200 × 1200 dpi for sharp documents and graphics Print speed up to 38 ppm on A4 with fast first page times Automatic duplex printing and dual paper trays for efficient workflow USB, Ethernet, and mobile print support with HP ePrint and AirPrint HP JetIntelligence toner for reliable page yields and business security tools
HP LaserJet Pro MFP M26nw Printer (T0L50A) is a compact monochrome laser multifunction printer designed for home and small office environments. It supports printing, copying, and scanning in one device. HP LaserJet Pro MFP M26nw Printer focuses on simple wireless operation and reliable everyday document handling. In addition, it delivers print speeds up to 18 pages per minute for black documents. It also provides up to 600 × 600 dpi print resolution for sharp and clear text output. Moreover, it supports fast scanning and copying for daily office tasks. Furthermore, it includes Wi-Fi, Ethernet, and USB connectivity for flexible installation in different workspaces. It also supports mobile printing through HP ePrint and Mopria for convenient smartphone and tablet use. In addition, it offers a compact design that fits easily in small desks or tight office areas. Finally, it supports a monthly duty cycle of up to 5,000 pages for light workloads. It delivers consistent monochrome performance for everyday document needs and small business use. Specifications: Print, copy, scan multifunction laser device Up to 18 ppm black print speed Up to 600 × 600 dpi print resolution Wi-Fi, Ethernet, USB connectivity support Monthly duty cycle up to 5,000 pages
Brother ADS-4300N High-speed Network Scanner is a professional desktop scanner designed for business environments. It delivers fast and reliable document digitization. Additionally, it supports network sharing to improve team productivity. Moreover, it scans up to 40 pages per minute and 80 images per minute in duplex mode. It uses a single-pass duplex system for efficient two-sided scanning. Therefore, it helps reduce scanning time for large document batches. It includes an 80-sheet automatic document feeder for continuous scanning. It supports USB 3.0, USB host, and Gigabit Ethernet connectivity. Additionally, it allows scanning directly to network, USB storage, or computer systems. Furthermore, it features advanced image processing and an ultrasonic multifeed sensor. It also includes configurable shortcut buttons for quick task execution. Therefore, it improves workflow efficiency in office environments. In conclusion, Brother ADS-4300N High-speed Network Scanner delivers fast duplex performance, flexible connectivity, and efficient document handling for business scanning needs. Manufacturer Link Specifications: Scans up to 40 ppm and 80 ipm duplex speed 80-sheet automatic document feeder for batch scanning Gigabit Ethernet and USB 3.0 connectivity options 600 x 600 dpi optical scan resolution Ultrasonic multifeed sensor for jam detection and accuracy
The TSP1000 is a specialty POS solution that offers truly outstanding value, reliability, performance and quality. The TSP1000 high capacity direct thermal printer offers support for up to a 7” diameter paper roll that is ideal for high volume applications. The integrated ticket/document stacker aids in sorting multiple tickets/documents where batch printing is required. Perfect for: lottery, large events, ticketing, industrial kitchen, bar and libraries.
Epson Expression-12000XL PRO “Epson Expression 12000XL Pro, Scanners, A3, 2,400 dpi x 4,800 dpi (Horizontal x Vertical), 3.8 Dmax, Input: 16 Bits Color / 16 Bits Monochrome, Output: 48 Bits Color / 48 Bits Monochrome, USB 2.0 Type B, Epson Scan, SilverFast Ai 8 (with IT8 calibration), Compatible with Mac OS 10.5.8 or later, Windows 7, Windows 8, Windows Vista, Windows XP. In The box : A3 Transparency Unit, Main unit, Power cable, Setup guide, Software (CD), USB cable, Warranty document.”
The HP DesignJet T1700 Printer (W6B55A) is a large‑format inkjet printer made for fast and accurate wide‑format printing. First, it prints technical drawings, posters, and maps up to 44 in wide with a high maximum resolution of up to 2400 × 1200 dpi and speeds up to 116 A1 per hour, so you stay productive on bigger jobs. In addition, it features six ink colours including cyan, magenta, yellow, photo black, matte black, and gray, with three universal printheads delivering detailed colour and line accuracy of about ±0.1 %. It handles sheet feed, roll feed, and has an automatic cutter for smooth output finishing. Moreover, the printer includes robust connectivity with Ethernet and USB ports, so you can print from PCs, Macs, or mobile devices using HP Click or HP Smart apps. A 500 GB self‑encrypting hard drive and 128 GB memory help manage complex files without delays. Specifications: High‑resolution wide‑format printing up to 2400 × 1200 dpi and 44 in wide output Fast print speed up to 116 A1 per hour for high productivity Six‑colour ink system with universal printheads for detailed graphics and colour accuracy Ethernet and USB connectivity with mobile app support for flexible printing Large internal storage and memory for complex file handling and secure printing
Z4B04A “HP PSC 315 Ink tank (Supplies: GT51 , GT52)” “3in1, Print, Scan, Copy, speed 19ppm Black/15ppm color, Res 1200x1200dpi Black / 4800x1200dpi Color, Scan Res 1200dpi, USB2, duty cycle 1000pages HP GT51 Black Original Ink Bottle ~5,000 pages HP GT52 Cyan/Mag/yel Original Ink Bottle — each one ~8,000 pages”
Epson ALC1000/2000 Kit Epson ALC1000/2000 Kit Photoconductor Kit 21k ,Epson AL-C1000/2000 Photoconductor Kit 21k . Epson AL-C1000/2000 Photoconductor Kit 21k Specifications: Specifications Epson AL-C1000/2000 Photoconductor Kit 21k High Efficiency Multi Device compatibility Manufacturer Link
The HP LaserJet MFP M141a Printer is a compact, reliable solution for home and office printing. First, it offers high-quality monochrome printing for sharp documents and professional results. In addition, the multifunction design allows printing, scanning, and copying in one device, saving space and improving efficiency. Moreover, the printer features fast print speeds and simple USB connectivity for easy setup. The intuitive controls make it accessible for beginners, while advanced users can optimize print settings for their workflow. Finally, its compact design, energy-efficient operation, and durable build ensure long-term performance for daily tasks. Specifications: Multifunction Printer: Print, scan, and copy in one compact device High-Quality Output: Sharp monochrome prints for professional documents Fast Printing: Efficient performance to handle daily tasks quickly Easy Connectivity: USB connection for simple setup and operation Durable Design: Energy-efficient, reliable build for long-term use
TSP743II Barcode, Label, Ticket & Receipt Printing from the ONE model Max. Print Speed : 250mm/sec. Resolution : 203 dpi, 406 x 203 dpi selectable No. of Columns : 48 / 64 or 53 / 71 col. Depending on Autocutter : Full or Partial Cut (Guillotine) Paper Width : 82.5mm, 80mm, 58mm selectable (80mm Standard with User Installable Paper Guide Fitted) Paper Thickness : 0.065 – 0.15mm Paper Roll Standard Option : 100mm Media Presentation : User Selectable Paper Delivery Options with Mounting Bracket included & Optional Paper Exit Guide Print Width : 80mm Maximum Sensors : Black Mark, Paper End, Cover Open, Near End Horizontal & Vertical Interface : Serial, Parallel, USB and Non Interface versions. Plug-In Options Serial (IFBD-HD03), 9-pin Serial (HN03), Parallel (HC03), Ethernet (HE07) Unique Ethernet Print on Disconnection Feature : Standard with IFBD-HE07 Option Power Supply : External Option PS60A Power Consumption : 1.8 amps Printing 0.15 amps Standby Energy Star : External, Energy Star Qualified PS60 (Optional) Reliability : 60 Million Lines 2 Million Cuts Dimensions (W x D x H) mm Weight : 147 x 213 x 148 1.75kg Options : Buzzer T700 Splash Proof Cover Blue or Green & Red LED Paper Exit Guide Plug-in Interfaces (see above) • “Plug-In” WebPRNT hardware solution for PC free network printing WebPRNT Tablet Software Bridge download option from the App Store & Google Play 1 Year Warranty manufacturer link
Type: Receipt Printer Ethernet receipt printer: DHCP Function Available. Auto find your ip address after installing printer driver. Print width: 79.5±0.5mm Paper Width: 3 1/8″ (80mm) No need for ribbon/ink. 1 year warranty
The Canon imageFORMULA DR-C230 Scanner is a high-performance document scanner designed for efficiency. It delivers fast, reliable, and high-quality scanning for businesses and home offices. With its compact design, it fits easily on any desk. This scanner offers impressive speeds of up to 30 pages per minute. It can handle up to 60 images per minute in duplex mode. Whether you’re scanning documents, receipts, or ID cards, it ensures clear and sharp results every time. The Canon imageFORMULA DR-C230 Scanner features an automatic document feeder (ADF) that holds up to 60 sheets. This allows for quick and uninterrupted scanning. It supports various document sizes and thicknesses, making it a versatile choice. Setting up the scanner is simple. It connects easily via USB, ensuring a smooth workflow. The included software provides powerful scanning options, allowing you to save files in multiple formats. You can scan directly to PDF, email, or cloud storage for convenience. This scanner is designed for durability and can handle heavy workloads. It supports advanced image processing features like automatic color detection, text enhancement, and blank page removal. These features ensure high-quality scans with minimal effort. The Canon imageFORMULA DR-C230 is energy-efficient and meets environmental standards. It is ideal for offices that require a reliable and compact scanning solution. Upgrade your document management with the Canon imageFORMULA DR-C230 Scanner today. Specifications: Scanning Sensor Unit : CMOS CIS 1 Line Sensor Optical Resolution : 600 dpi Scanning Side : Front, Back, Duplex Interface : High Speed USB 2.0
HP Mono Laser / A4 Format W1A52A LJ Pro M404n Speed 38ppm, Res 1200x1200dpi, 1.2GHz proceesor, 256MB Memory, , Network, E-print, Airprint, USB2.0, Duty Cycle 80,000 pages
The Brother PT-H110 Label Printer is a compact and easy-to-use device designed for home and office labeling. It offers clear and professional labels for organizing files, shelves, and everyday items. With its portable size, you can carry it anywhere with ease. This printer supports a wide range of tape styles and widths. You can create labels for folders, cables, and storage boxes quickly. Its versatility makes it a practical solution for both work and personal use. The Brother PT-H110 Label Printer comes with a simple keyboard layout for smooth operation. Its easy-to-read display allows you to preview labels before printing. This feature helps reduce waste and ensures accuracy. Multiple font styles and symbols are available to customize your labels. You can make each label clear, stylish, and suited to your needs. It helps bring order and clarity to any environment. The Brother PT-H110 Label Printer runs on batteries, making it great for on-the-go use. Its lightweight design ensures comfortable handling during long labeling tasks. Whether for business or home, it is a reliable labeling solution. Specifications: PT-H110 Label Printer Print Speed : 20 mm / sec. TZe width : 6mm, 12mm Screen Type : LCD Languages : English, Arabic and Farsi
Canon Selphy CP1000 0077C006AA
W1A78A “HP CLJ Pro MFP M479fnw**NEW Supplies: W2030A,W2031A,W2032A,W2033A (415A)” 4in1, print, scan, copy, fax, Speed 27ppm Black & Color, Print res 600dpi, Scan res 1200dpi, 1200MHz processor, 512MB Memory, 4.3″ intuitive color touchscreen (CGD), Flatbed, ADF, Network, Wireless, E-Print, Airprint,WI-FI Direct, USB2.0, Duty Cycle 50,000 pagess
HP Color LaserJet CP5225n Printer (CE711A) is a color laser printer designed for small to medium office environments. It focuses on high-quality A3 color printing for business documents, graphics, and large-format outputs. HP Color LaserJet CP5225n Printer delivers reliable performance for professional color printing needs. In addition, it prints up to 20 pages per minute for both black and color documents. It also supports a print resolution of up to 600 × 600 dpi for clear text and graphics. Moreover, it supports media sizes up to 12.6 × 18 inches for A3 and oversized printing. Furthermore, it includes USB and Ethernet connectivity for stable office network integration. It also uses four individual toner cartridges (black, cyan, magenta, yellow) for efficient color management. In addition, it has a recommended monthly page volume of around 1,500 to 5,000 pages for optimal performance. Finally, it is built for durability with a monthly duty cycle up to 75,000 pages for heavy office workloads. HP Color LaserJet CP5225n Printer provides consistent color accuracy and dependable output for business printing environments. Specifications: Color laser printing for A3 and large formats Up to 20 ppm black and color print speed Up to 600 × 600 dpi print resolution Supports media up to 12.6 × 18 inches USB and Ethernet connectivity for office networks
HP Printer A3 MFP Laser 1VR14A LJ MFP M433a 3in1, print, scan, copy, Speed 20ppm A4 / 12ppm A3, Res 600x600dpi, 600MHz processor, 128MB Memory, Duty Cycle 50,000 pages, USB 2.0 Specifications: HP Printer A3 MFP Laser 1VR14A LJ MFP M433a 3in1, print, scan, copy, Speed 20ppm A4 / 12ppm A3, Res 600x600dpi, 600MHz processor, 128MB Memory, Duty Cycle 50,000 pages, USB 2.0
HP LaserJet 179fnw is a compact color laser multifunction printer that offers printing, scanning, copying, and faxing in one device. With Wi-Fi wireless printing, fast performance, and high-quality color output, it is suitable for small offices, home offices, and business use.
C5F93A HP Laserjet Pro 400 M402n (Supplies : CF226A) 40ppm -1200dpi, 1200MHz processor, 128MB Memory, Network, E-Print, Airprint, USB2.0, Duty Cycle 80,000 pages
Specifications : Model name HP Smart Tank 518 Printer Product number 1TJ11A What’s included and accessories What’s in the box HP Smart Tank 518; HP GT53XL 135-ml Black Original Ink Bottle; HP GT52 Cyan Original Ink Bottle; HP GT52 Magenta Original Ink Bottle; HP GT52 Yellow Original Ink Bottle; Ink caution flyer; Repacking flyer; Setup guide; Reference guide; Regulatory flyer; China warranty card; China 3G card; Indonesia warranty card; QQ-Wechat flyer Power cord [For more information about fill and yield, see http://www.hp.com/go/learnaboutsupplies] Accessories None Connectivity Ports Hi-Speed USB 2.0, Wi-Fi, Bluetooth LE Wireless capability Yes, built-in Wi-Fi 802.11b/g/n Copy Copier settings Number of Copies, Resize, Quality, Lighter/Darker, Papersize, Papertype, ID Copy, Enhancement Color copy capability Yes Maximum number of copies Up to 99 copies Copy resolution Up to 600 dpi Environmental Acoustic power emissions (active, printing) 6.5 B(A) Acoustic pressure emissions 51 dB Recommended operating humidity range 20 to 80% RH Non-Operating Humidity Range 5 to 90% RH (non-condensing) Recommended operating temperature range (Celsius) 15 to 30°C Recommended operating temperature range (Fahrenheit) 59 to 86°F Storage temperature range (Celsius) -40 to 60°C Storage temperature range (Fahrenheit) -40 to 140°F Environmental specifications No Fax Telephone handset supported No Memory Memory 256 MB; Integrated memory Maximum Memory 256 MB Memory card compatibility No Mobile printing capability Mobile printing services HP Smart app; Apple AirPrint™; Fire™; Google Cloud Print 2.0; HP ePrint; Android printing; Mopria™-certified Networking Network protocols, supported 9100, SNMP, SLP, IPP, WS-Print, Wireless, LPR Paper handling Input capacity Up to 100 sheets Standard input capacity (cards) Up to 30 cards Standard input capacity (envelopes) Up to 10 Output capacity Up to 30 sheets Media sizes supported (metric) A4; B5; A6; DL envelope, legal Media sizes supported (U.S. standard) Letter; legal; 4 x 6 in; 5 x 7 in; 8 x 10 in; No. 10 envelopes Media sizes, custom (metric) 76.2 x 127 to 215.9 x 355.6 mm Media sizes, custom (U.S. standard) 3 x 5 in to 8.5 x 14 in Media types Plain paper, Matte Brochure Papers, Glossy Brochure Papers, Photo papers, Envelopes, Other specialty inkjet papers Media weight supported (metric) Plain paper: 60 to 90 g/m²; Envelopes: 75 to 90 g/m²; Cards: up to 200 g/m²; Photo paper: up to 300 g/m² Media weight supported (U.S. standard) 20 lb Borderless printing Yes (up to 8.5 x 11 in, 210 x 297 mm) Paper handling – duplexer Media sizes, duplex (U.S. standard) Letter; Executive Physical dimensions Maximum dimensions (W x D x H, metric) 449 x 605.65 x 258.7 mm Maximum dimensions (W x D x H, U.S. standard) 17.7 x 23.8 x 10.18 in Weight (metric) 5.14 kg Weight (U.S. standard) 11.31 lb Power Energy savings feature technology HP Auto-Off Technology Power supply type Internal built in Power supply Input voltage 100 to 240 VAC (+/- 10%), 50/60 Hz (+/- 3 Hz). High voltage: Input voltage 200 to 240 VAC (+/- 10%), 50/60 Hz (+/- 3Hz) Power consumption 0.12 watts (manual-Off), 3.12 watts (ready), 0.75 watt (sleep) Print cartridges Number of print cartridges 4 (1 each black bottle, set of 3 color bottles) Replacement cartridges HP GT53 90-ml Black Original Ink Bottle 1VV22AA; HP GT53XL 135-ml Black Original Ink Bottle 1VV21AA; HP GT52 Cyan Original Ink Bottle M0H54AA; HP GT52 Magenta Original Ink Bottle M0H55AA; HP GT52 Yellow Original Ink Bottle M0H56AA. For more information about fill and yield, see http://www.hp.com/go/learnaboutsupplies Printing specifications Print technology HP Thermal Inkjet Duplex printing Manual (driver support provided) Print speed (black, draft, Letter) Up to 22 ppm Print speed (color, draft, Letter) Up to 16 ppm Print speed black (ISO) Up to 11 ppm Print speed color (ISO) Up to 5 ppm Print resolution black (best) Up to 1200 x 1200 rendered dpi Print resolution color (best) Up to 4800 x 1200 optimised dpi colour when printing from a computer and 1200 input dpi Maximum print area (metric) 216 x 355 mm Monthly duty cycle Up to 1000 pages Print languages HP PCL 3 GUI Regulatory specifications Regulatory model number SNPRC-1804-01 Safety IEC 60950-1 & IEC 62368-1 compliant; EU LVD and EN 60950 & EN 62368 compliant; UL GS approved; Singapore Safety; Russia EAC; China CCC; Taiwan BSMI Electromagnetic compatibility CISPR 32:2015/EN 55032:2015 Class B; CISPR24:2010/EN 55024:2010; EN 61000-3-2:2014; EN 61000-3-3:2013; EN 301 489-1 V2.1.1:2017; EN 301 489-17 V3.1.1:2017 GB4943.1-2011, GB/T9254-2008, GB17625.1-2012 (CCC China); CNS14336-1, CNS13438 & CNS15663 (BSMI RoHS -Taiwan); EAC (Russia) Telecom compliance (fax capability) EN 300 328 V2.1.1:2016; EN 301 893 V2.1.0:2017 Scan Scan technology Contact Image Sensor (CIS) Scan speed (normal) Up to 3 ppm color; up to 5 ppm, mono Scan resolution, hardware Up to 1200 x 1200 dpi Levels of grayscale 256 Bit depth 24-bit Scanning options (ADF) Not Applicable Maximum flatbed scan size (metric) 216 x 297 mm Maximum flatbed scan size (U.S. standard) 8.5 x 11.69 in Twain version Version 2.1 Security Security management No System requirements Minimum system requirements for Windows Windows 10, 8, Windows 7 Service Pack 1 (SP1): 32-bit or 64-bit, 2 GB available hard disk space, Internet connection, USB port, Internet Explorer. Recommended system requirements for Windows Windows 10, 8, Windows 7 Service Pack 1 (SP1): 32-bit or 64-bit, 2 GB available hard disk space, Internet connection, USB port, Internet Explorer. Minimum System Requirements for Macintosh OS X v10.11 El Capitan and above, Internet Access Recommended Macintosh system requirements OS X v10.11 El Capitan and above, Internet Access Operating system (supported note) Windows 10, 8, Windows 7 Service Pack 1 (SP1); OS X v10.11 El Capitan, macOS Sierra v10.12 (previously OS X), macOS High Sierra v10.13, macOS Mojave v10.14 1 Year Warranty manufacturer link
A versatile wireless 2D barcode scanner with desk stand—Beurotika BS104WS supports auto-scan, continuous, and manual modes, with up to 200 scans per second and a 2000mAh rechargeable battery for all-day use. The Beurotika BS104WS is a high-performance wireless 2.4GHz 2D barcode scanner designed for retail, warehouse, logistics, and office environments. It comes with a convenient desktop stand for hands-free operation and features a 32-bit high-speed processor for fast, accurate decoding of 1D and 2D barcodes—including QR Code, Data Matrix, PDF417, and more Three scanning modes: Auto-scan, continuous scan, and manual trigger—ideal for different workflow needs Scanning speed: Up to 200 scans per second for rapid data capture Wireless range: Reliable 2.4GHz connection (via USB dongle) for cord-free mobility Built-in battery: 3.7V 2000mAh lithium-ion battery offering up to 16 hours of continuous use Ergonomic handheld design with desk stand for flexible countertop or portable use Plug-and-play setup via USB receiver—no drivers required for most systems
NCTS USB Barcode Scanner – High-speed wired scanner for both 1D and 2D barcodes with auto-sensing mode.Plug-and-play solution ideal for retail, inventory, and logistics operations. Model: NCTS 1D/2D Barcode Scanner (USB Wired) Color: Black Scan Type: Image-based CMOS scanner Supported Barcode Types: 1D: Code 128, Code 39, EAN-13, UPC-A, Codabar, ISBN, etc. 2D: QR Code, PDF417, Data Matrix, Aztec, etc. Supported Barcode Types: 1D: Code 128, Code 39, EAN-13, UPC-A, Codabar, ISBN, etc. 2D: QR Code, PDF417, Data Matrix, Aztec, etc. Interface: USB 2.0 (Plug-and-play, no driver required) Scan Speed: Up to 300 scans/second Resolution: ≥ 4mil (0.1mm) Scan Modes: Manual trigger Auto-sensing Continuous mode Scan Modes: Manual trigger Auto-sensing Continuous mode Light Source: White LED illumination + red aiming line Indicators: LED and buzzer for scan confirmation Power Supply: DC 5V (via USB port) Cable Length: ~1.5 meters Build: ABS plastic, ergonomic handheld design Compatibility: Windows, macOS, Linux, Android Applications: POS, inventory, logistics, healthcare, warehouse use
Barcode Reader Wireless 2D S20W Wireless 2D Barcode Scanner | S20-W Name: Wireless 2D Barcode Scanner Model: S20-W Interface: USB Color: Black