HP DeskJet 2320 All-in-One Printer (7WN42B) is an inkjet multifunction printer designed for basic home use. It supports printing, copying, and scanning in one device. HP DeskJet 2320 All-in-One Printer focuses on simple setup and everyday document tasks. In addition, it delivers print speeds up to 7.5 pages per minute for black and up to 5.5 pages per minute for color in ISO mode. It also supports manual duplex printing for two-sided documents. Moreover, it provides up to 4800 × 1200 optimized dpi color resolution. Furthermore, it includes a 60-sheet input tray and a 25-sheet output capacity for daily use. It supports USB connectivity only, without wireless or mobile printing features. Finally, it uses HP Thermal Inkjet technology and supports a monthly duty cycle up to 1000 pages. HP DeskJet 2320 All-in-One Printer delivers simple and reliable performance for basic home printing needs. Specifications: Print, copy, scan multifunction inkjet device Up to 7.5 ppm black and 5.5 ppm color ISO speed Manual duplex (two-sided) printing support 60-sheet input and 25-sheet output capacity USB 2.0 connectivity only (no wireless)
Epson C13T66444A Epson Yellow Ink bottle 70ml Specifications: Specifications Epson Yellow Ink bottle 70ml
The Zebra ZD421T is a reliable thermal transfer label printer designed for business and warehouse environments. First, it delivers high-quality label printing with sharp text and clear barcodes. The thermal transfer technology ensures durable labels suitable for long-term use. In addition, USB, Ethernet, and Bluetooth connectivity provide flexible integration with various systems. Moreover, the compact design fits easily on desks or workstations. The intuitive interface allows simple setup and smooth daily operation. Furthermore, it supports a wide range of label sizes for retail, logistics, and healthcare applications. Finally, the Zebra ZD421T combines dependable performance, versatile connectivity, and professional print quality in one compact device. Overall, it is ideal for businesses that require consistent and efficient label printing. Specifications: Thermal transfer printing technology USB, Ethernet, and Bluetooth connectivity High-resolution barcode and label output Compact desktop-friendly design Supports various label sizes and media types
HP 652 Black Original Ink Cartridge F6V25AE Compatible Printers : HP DeskJet Ink Advantage 1115 Printer(F5S21C) HP DeskJet Ink Advantage 2135 All-in-One Printer(F5S29C) HP DeskJet Ink Advantage 3635 All-in-One Printer(F5S44C) HP DeskJet Ink Advantage 3775 All-in-One Printer(T8W42C) HP DeskJet Ink Advantage 3785 All-in-One Printer(T8W46C) HP DeskJet Ink Advantage 3787 All-in-One Printer(T8W48C) HP DeskJet Ink Advantage 3790 All-in-One Printer(T8W47C) HP DeskJet Ink Advantage 3835 All-in-One Printer(F5R96C) HP DeskJet Ink Advantage 4535 All-in-One Printer(F0V64C) HP DeskJet Ink Advantage 4675 All-in-One Printer(F1H97C) HP DeskJet Ink Advantage 5275 All-in-One Printer(M2U76C) manufacturer link
Original product name: HP printer MFP Mono Laser / A4 Format G3Q59A LJ Pro MFP M130fn 4in1, print, scan, copy, fax, Speed 22ppm, Res 1200dpi, 600MHz processor, 128MB Memory, Flatbed, ADF, USB 2.0, Network, E-Print, Airprint, Duty cycle 10,000pages HP printer MFP Mono Laser / A4 Format G3Q59A LJ Pro MFP M130fn 4in1, print, scan, copy, fax, Speed 22ppm, Res 1200dpi, 600MHz processor, 128MB Memory, Flatbed, ADF, USB 2.0, Network, E-Print, Airprint, Duty cycle 10,000pages
The BUEROTIKA Thermal Printer is a reliable solution for all your printing needs. It offers fast and efficient printing, making it perfect for home or office use. This printer uses thermal technology, which means it produces high-quality prints without the need for ink. Setting up the BUEROTIKA Thermal Printer is a breeze. You can connect it easily to your devices via USB or Bluetooth. This flexibility allows you to print from your laptop, tablet, or smartphone. With its user-friendly interface, you can start printing within minutes. One of the standout features of this printer is its compact design. It takes up minimal space, making it ideal for small offices or home desks. Despite its small size, it delivers impressive printing speeds, ensuring you won’t waste time waiting for documents. The BUEROTIKA Thermal Printer also supports various paper sizes. Whether you need labels, receipts, or regular documents, this printer can handle it all. Its high-resolution printing ensures that your text and images are clear and professional. Additionally, this thermal printer is cost-effective. Since it doesn’t require ink or toner, you can save money in the long run. The printer also consumes less power, making it an environmentally friendly choice. In conclusion, the BUEROTIKA Thermal Printer combines efficiency, convenience, and affordability. It is the perfect choice for anyone looking for a reliable printing solution. Upgrade your printing experience today with this exceptional thermal printer. Specifications: Printer Type : Direct thermal Printing Speed Max : 230mm/s Paper Width : 83mm / Print width: 72mm Mechanism : 150km Auto Cutter : 1.5 million cuts Interface : RJ11 + USB
The HP LaserJet Pro MFP M428dw Printer | W1A28A is a fast, reliable monochrome laser printer for offices and workgroups. First, the HP LaserJet Pro MFP M428dw Printer prints sharp black‑and‑white documents at speeds up to 38 pages per minute with clear 1200 × 1200 dpi quality. This helps with daily tasks like reports, letters, and forms. In addition, the M428dw supports automatic two‑sided printing and has a 50‑sheet automatic document feeder for scanning and copying stacks of pages without stopping. Therefore, you save time on multi‑page jobs and use less paper. It also has a colour touchscreen panel that makes control simple. Moreover, the printer connects via USB, Gigabit Ethernet, or built‑in dual‑band Wi‑Fi so you can print from desktops, laptops, and mobile devices. For example, mobile printing works with HP Smart, Apple AirPrint, and Mopria‑Certified apps for quick wireless printing without cables. Specifications: Fast monochrome laser printing up to 38 pages per minute with clear 1200 × 1200 dpi output Automatic duplex printing and 50‑sheet ADF for efficient workflows USB, Gigabit Ethernet, and dual‑band Wi‑Fi for flexible connectivity 2.7‑inch colour touchscreen for simple control Mobile printing support via HP Smart, Apple AirPrint, and Mopria‑Certified apps
The Epson Expression 13000XL Pro Flatbed Scanner is a professional-grade solution for scanning large-format media with studio-level quality. It offers a generous flatbed size up to 12.2″ × 17.2″, ideal for photos, artwork, maps, and more. Also, it delivers high resolution—2,400 dpi optical, expandable to 4,800 dpi via Micro Step Drive—for sharp, detailed scans. Moreover, it provides 3.8 Dmax density and 48-bit color depth, ensuring rich tones and excellent contrast. Furthermore, Epson’s MatrixCCD and ReadyScan LED technologies capture vibrant, true-to-original color without warm-up delays. In addition, the scanner includes Easy Photo Fix, one-touch color restoration, and dust removal tools for old or faded images. It also supports batch scanning, boosting productivity by processing multiple originals in one go. Plus, users can add the optional transparency unit to scan film and slides up to 12″ × 16.5″, expanding versatility. Moreover, the Pro includes LaserSoft Imaging SilverFast AI software with calibration targets and multi-exposure features for professional editing. It offers USB 2.0 connectivity, works with both Mac and Windows, and comes with TWAIN drivers for wide software compatibility. The unit measures approximately 25.8″ × 18″ × 6.2″ and weighs 31.5 lb, built for desktop use in studios or archives. While it’s discontinued and succeeded by newer models, users still praise its image clarity and film scanning capability. For photo pros, artists, and archivists, this scanner delivers exceptional quality and versatility. Check other options here! Specifications: A3 graphics scanner : Professional results up to A3 format Superior quality : 2,400 x 4,800dpi resolution High precision : Micro Step Drive technology
Canon High Speed Document Scanners DR-F120 High speed Document Scanner with automatic document feeder and flatbed unit. 20ppm duplex scanning and 50 sheet ADF. Stylish, Compact and high class design, multiple file formats (PDF, TIFF, JPEG, BMP, PNG and PowerPoint and MultiStream scanning, daily volume of up to 800 scans.
The Canon PIXMA MG2545S Printer delivers clear printing, scanning, and copying in one compact unit. It is ideal for home use, students, and small offices that need basic everyday printing. First, this all-in-one device prints documents and photos with a resolution up to 4800 × 600 dpi. As a result, text and images look crisp and detailed. In addition, the Canon PIXMA MG2545S Printer prints up to 8 pages per minute in black and 4 pages per minute in color. Therefore, small document tasks stay quick and reliable. This printer uses 2 FINE cartridges (black and colour) for smooth ink delivery and good print quality. Also, optional XL cartridges help lower your cost per page. Moreover, the scanner offers 600 × 1200 dpi optical resolution for clear digital copies of photos and documents. Thus, your scans stay sharp and easy to save. The Canon PIXMA MG2545S Printer also includes a copier function for quick duplication without a computer. This adds extra convenience. Because it connects through Hi-Speed USB, setup stays simple and direct with most desktops or laptops. So, you start printing without complex steps. This model supports common paper types like plain paper, envelopes, and glossy photo papers. As a result, you can handle varied documents and photos easily. Furthermore, the rear tray holds up to 60 sheets, helping you print many pages without frequent refills. The Canon PIXMA MG2545S Printer has a compact design that fits neatly on desks and workspaces. Also, it uses modest power, making it energy efficient for everyday use. Compared to single-function printers, this all-in-one model adds scanning and copying in one device. Therefore, it delivers more value for home and office tasks. In conclusion, this printer offers dependable performance, simple setup, and clear results. Overall, it is a solid choice for everyday printing needs. Specifications: Functions : Print, Copy, Scan Print Resolution: Up to 4800 x 1200 dpi. Print Technology : 2 FINE Cartridges (Black and Colour) Print Speed: Up to 8 ipm (mono) / 4 ipm (color). Scanner Resolution: Up to 600 x 1200 dpi (flatbed). Connectivity: USB 2.0 (wired only).
Epson T7741 Pigment The Epson T7741 Pigment .Say goodbye to ink cartridges and say hello to ultra-low cost printing with the new EcoTank Series. Specifications: Specifications The models below are compatible with one or more items in this range. For more details,please refer to the manual for your product. EcoTank L1455 EcoTank L1455 EcoTank L605 EcoTank L605 EcoTank L655 EcoTank L655 WorkForce M100 WorkForce M100 WorkForce M105 WorkForce M105 WorkForce M200 WorkForce M200 Manufacturer Link
The Canon PIXMA TS3440 Printer delivers easy and reliable printing, scanning, and copying for home and small office use. It is designed for users who want wireless convenience and clear results. First, this all-in-one inkjet printer supports Wi-Fi printing, letting you print from phones, tablets, and laptops without cables. As a result, setup and use feel simple and flexible. In addition, the Canon PIXMA TS3440 Printer produces sharp documents and vivid images with print resolution up to 4800 × 1200 dpi. Therefore, text and photos look crisp and detailed. This model offers fast print speeds with about 7.7 ipm for black and 4.0 ipm for color. So everyday printing stays reliable for schoolwork and office tasks. Moreover, it supports borderless photo printing up to 5×7″ in size for smooth photo edges. Thus, photos feel ready for albums and displays. Because it includes a flatbed scanner, you can scan documents and pictures easily. Also, you can make copies without a computer. The Canon PIXMA TS3440 Printer works with the Canon PRINT app, AirPrint, and Mopria for mobile and cloud printing. Therefore, printing from many apps feels convenient. This printer has a small 1.5″ LCD screen for clear status and menu navigation. Also, the rear paper tray holds about 60 sheets of plain paper. Because it supports many paper sizes like A4, A5, B5, and photo paper, it fits varied tasks. Also, it offers manual two-sided printing when needed. Installation is quick with plug-and-play setup and wireless support. So you can start printing right away. In conclusion, this printer combines ease, wireless flexibility, and clear print quality. Overall, it is a solid choice for everyday home and office use. manufacturer link Specifications: Display: 3.8cm (1.5″) Mono Segment LCD for clear status updates. Photo Printing: Borderless prints up to 5×7″, with a 4×6″ print in about 65 seconds. All-in-One: Print, Copy, Scan. Cartridges: Uses FINE cartridges (PG-445 Black, CL-446 Colour) with XL options for longer life.
The Star Micronics Receipt Printer BSC10II provides fast and clear printing for retail shops, restaurants, and small businesses. It creates sharp receipts that look clean and professional. The printer works quickly, and it helps reduce customer waiting time. It supports daily operations with strong reliability. Moreover, the Star Micronics Receipt Printer has a compact and durable design. It fits well on small counters and tight spaces. The solid build ensures long-lasting performance. This makes it ideal for busy work environments. In addition, the printer offers easy setup with simple controls. It supports multiple connection options for different POS systems. You can install it quickly without any trouble. This allows you to start printing in just a few minutes. Furthermore, the Star Micronics Receipt Printer BSC10II prints at high speed. This ensures smooth checkout lines and faster service. It stays consistent even during heavy use. Your workflow becomes more efficient throughout the day. Also, the printer uses thermal printing technology. This means no ink and no toner are required. It helps businesses reduce long-term costs. The paper loading system is fast and user-friendly. The Star Micronics Receipt Printer also includes a reliable auto-cutter. It delivers clean cuts after every print. This helps create professional receipts for customers. The strong design ensures stable performance in any setting. Overall, the Star Micronics Receipt Printer BSC10II offers speed, clarity, and easy operation in one compact device. It improves business workflow and enhances customer service. It is perfect for shops, cafés, restaurants, and service counters. This printer delivers dependable performance with simple and efficient features. Specifications: Paper Width : 80mm Print Speed : 250mm/s Dual USB-C and Ethernet LAN interface and USB-A
The Canon i-SENSYS MF275dw is a multifunction printer designed to deliver fast, sharp, and efficient performance for home and office use. Because of its all-in-one design, it combines printing, scanning, copying, and faxing into a single reliable device. Therefore, it saves space while improving workflow. This printer produces high-quality black-and-white prints with crisp text and clear details. Moreover, it operates at impressive speeds, ensuring users stay productive throughout the day. As a result, it is well-suited for busy professionals and small businesses. A standout feature of the Canon i-SENSYS MF275dw is wireless connectivity. In other words, users can print directly from laptops, smartphones, or tablets without cables. Furthermore, it supports popular mobile printing solutions, making it convenient for modern work environments. In addition, the printer includes automatic duplex printing. For example, it can print on both sides of a page without manual effort. Consequently, it saves time, reduces paper costs, and supports eco-friendly practices. The scanner and copier functions are equally efficient. For instance, they allow you to digitize or duplicate documents with clarity and speed. Because of this, the device provides complete multifunction support in a compact design. Not only does the Canon i-SENSYS MF275dw focus on performance, but it also features energy-saving technology. Therefore, it helps reduce power consumption while maintaining consistent results, which benefits both budgets and the environment. Overall, this multifunction printer combines speed, wireless convenience, duplex printing, and reliable output. As a result, it is a smart choice for homes and offices needing dependable everyday printing solutions. Specifications: Function : Print, Copy, Scan, Fax Print Technology : Laser Monochrome Print Speed : Up to 29 Papers/minute Print Resolution : 600 x 600 DPI Supported Media Sizes : A4, A5, B5, and Custom Sizes from 76×127 to 216×356 mm Connectivity : USB 2.0, Ethernet and Wi-Fi Memory : 256MB Monthly Duty Cycle : Up To 20000 pages.
HP Printers Color Laser / A4 Format T6B60A Color Laser Jet 254dw , Speed 21ppm Black/Color, Res 600x600dpi, 128MB Memory, 800MHz processor, Network, Duplex, Wireless, E-Print, Airprint, 6.85 cm color touchscreen, USB2.0, Duty Cycle 40,000 pages
The Canon PIXMA TR4645 All-in-1 Inkjet Printer delivers reliable printing, scanning, copying, and faxing in one compact unit. It is ideal for home offices, students, and small workspaces who need versatile document handling. First, this printer offers Wi-Fi and USB connectivity for easy wireless and wired setup. As a result, you can print from laptops, smartphones, and tablets with little effort. In addition, the Canon PIXMA TR4645 All-in-1 Inkjet Printer prints sharp text and vibrant colors at up to 4800 × 1200 dpi. Therefore, documents and photos look crisp and detailed. This model supports automatic two-sided printing, helping you save paper and time. Thus, duplex jobs finish without manual flipping. Moreover, a 20-sheet Automatic Document Feeder (ADF) makes scanning and copying multi-page documents faster. So, everyday tasks feel smooth and efficient. Because it has built-in fax capability, you can send and receive faxes directly from the unit. This adds extra versatility for home or small office use. The Canon PIXMA TR4645 All-in-1 Inkjet Printer also supports mobile printing through Canon PRINT, AirPrint, and Mopria. Therefore, you can print without a computer from most devices. In addition, borderless photo printing lets you produce vibrant 4×6″ photos in about 65 seconds. Thus, your prints look great for family albums and creative projects. The front paper tray holds up to 100 sheets for daily use. Also, a mono LCD screen helps you control settings easily. Compared to basic single-function printers, this all-in-one model combines four functions in one space-saving design. So, it delivers more value for home and work tasks. In conclusion, the Canon PIXMA TR4645 All-in-1 Inkjet Printer offers versatile performance, wireless convenience, and high-quality output. If you want a reliable multifunction printer for home or small office use, this model is worth choosing. Specifications: Resolution: Up to 4800 x 4800 dpi for detailed scans. Print Technology : Uses Contact Image Sensor (CIS) and 3-color (RGB) LED light source. Speed: Scans an A4 document in about 8 seconds. Z-Lid: Double-hinged lid lifts up to 21mm to scan bulky items like books.
“Epson LQ-350 Narrow/A4” Dot Matrix printer: 24 pins, 80 column, Original + 3 copies, 300 cps HSD (10 cpi), Epson ESC/P2, IBM 2390+ emulation, 14 fonts, 8 Barcode fonts, 3 paper paths, single and continuous sheet, paper park, Connectivity: Parallel, USB and Serial interface. A very economical printer to run, the LQ-350 helps save money with its high ribbon yield of 2.5 million characters and its low power consumption. Using just 1.3W in sleep mode and 23W when powered on, the LQ-350 is qualified by ENERGY STAR for its excellent energy efficiency. Easy to integrate, the LQ-350 has Parallel, Serial and USB interfaces as standard, and will fit neatly onto desks thanks to its compact design and cable management system. Key Features High reliability MTBF of 10,000 operating hours Power-efficient 1.3W on standby, 22W powered on Economical Ribbon yield of 2.5m characters Easy integration Parallel, Serial and USB interfaces Compact design Fits neatly onto desks
Upgrade your printing game with the HP 953XL Yellow Original Ink cartridges. These reliable ink cartridges ensure brilliant and long-lasting prints, making them an ideal choice for both documents and photos. First and foremost, experience the vividness of colors that HP 953XL brings to your prints. Whether it’s important documents or cherished photos, the color accuracy and clarity will leave a lasting impression. Transition to efficiency with these high-capacity cartridges. The XL capacity ensures fewer interruptions, allowing you to print more pages before needing a replacement. Say goodbye to constant cartridge changes! Incorporating the latest printing technology, HP 953XL guarantees consistent and smear-resistant prints. Your documents will have a professional appearance, and your photos will capture every detail with precision. Save time and money by opting for these genuine HP ink cartridges. Designed to work seamlessly with your HP printer, you can trust that every print will meet the highest quality standards. Switching to HP 953XL Yellow Original Ink is a step towards environmental responsibility. These cartridges are recyclable through HP’s Planet Partners program, contributing to a more sustainable printing solution. In summary, elevate your printing experience with HP 953XL Yellow Original Ink. Enjoy vibrant, high-quality prints that make a statement. Upgrade your cartridges for better efficiency and superior results. Manufacturer link
The Brother TD‑4420DN 4″ Thermal Desktop Barcode and Label Printer delivers crisp, professional labels with direct thermal printing. Moreover, it prints at 203 dpi resolution for clear barcodes and text. Also, its fast print speed of up to 8 ips (203 mm/s) boosts efficiency in busy operations. Furthermore, the Brother TD‑4420DN supports USB, serial, and wired LAN connections. Thus, it integrates easily into both standalone and networked workflows. Also, it is compatible with Windows, Linux, Android, and iOS systems via AirPrint and SDK. In addition, this model handles media widths from 19 mm to 118 mm and prints up to 3,000 mm length. Also, it accepts fans, die-cut, tags, wristbands, fan-fold and continuous media. Moreover, optional peeler and cutter modules simplify label dispensing. The Brother TD‑4420DN delivers dependable performance thanks to its compact design. It measures just 7.1″ × 6.1″ × 8.8″ and weighs about 2.1 kg. Also, auto media sensing and drop-in loading speed up roll changes . Meanwhile, its sturdy steel-and-plastic frame resists shop wear. Also, it meets Energy Star standards for eco-friendly use . In use, it handles high-demand environments without jamming or delays. Overall, the Brother TD‑4420DN 4″ Thermal Desktop Barcode and Label Printer offers top performance, network flexibility, and media compatibility. It suits logistics, retail, manufacturing, healthcare, and warehousing needs. Finally, it is easy to install, maintain, and scale with accessory upgrades like peelers or cutters. Specifications: Resolution : 203 dpi Barcode : Yes Connectivity : USB Max Roll Width : 19-118mm
HP W2070A 117A Black Laser Toner | W2070A
Brother LC3719XLBK : Brother has long been a reliable partner in the office to get printing and scanning jobs done. We supply generic and original replacement cartridges for your Brother printer. Moreover some of our customers insist on using the original OEM cartridges and drum units. Use our range of guaranteed generic replacement cartridges and drum units (Brother LC3719XL Black Generic Ink (LC3719XL-BK) ), therefore our slogan is to cut costs not corners. Toners Corporation (Pty) Ltd has been supplying Brother ink and Brother Laser toner cartridges since 1995. Specifications: A High Quality Compatible Generic Replacement Ink Cartridges. Buy All Four Colours and Save! Print Clear Vivid Images and Text. Easy to Install & Replace Long Lasting Money-Wise Printing Solution Compatible Brother Printers: MFCJ2330DW; MFCJ2730DW; MFCJ3530DW; MFCJ3930DW; Page Yield: 1500 pages @ 5% coverage Toner Corporation – Cutting Costs not Corners. 1 year warranty Manufacturer Link
Barcode Reader Wireless 2D S20W Wireless 2D Barcode Scanner | S20-W Name: Wireless 2D Barcode Scanner Model: S20-W Interface: USB Color: Black
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
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
