WiWU 20W fast Charger for Mobile Phone with USB C Quick Power Adapter in white Wall charger
DELL 357F9 11.1V or 11.4V 74Wh Battery For DELL Inspiron 15 5000 Gaming 5576 5577 ,15 7000 Gaming 7557 7559 7566 7567 Laptops Alternant Part Number: 357F9 71JF4 0GFJ6 071FJ4 00GFJ6 P65F001 P57F003 About this item Battery Type:6 cell Li-Polymer Best Quality Voltage &Capacity :11.1V 74Wh 6330mAh , 11.4V 74Wh 6480mAh SANISI Concept: The customer is god, Product Quality and Service must be perfect! We will let every customer feel satisfied Package Contents: 1 pcs Brand New Battery
BATTERY ACER AC14B8K Battery 4ICP5/57/80 for Acer Aspire R5-571T R5-471T R7-371 R7-371T R3-131T ES1-511 ES1-512 ES1-531 E3-112 Chromebook CB5-571 CB3-531 Swift 3 SF314-51 SF314-52 Nitro 5 AN515-51 Aspire 5 A515-51 About this item Compatible for Acer AC14B8K 4ICP5/57/80 KT0030G.004 KT.0040G.004 3ICP5/57/80 Battery Compatible Models for Acer Chromebook CB5-571 CB5-571-C1DZ CB5-571-C4G4 CB3-531 CB3-531-C4A5, Acer Aspire R3-131T R3-131T- P344 R5-571T R5-571T-59DC R5-571TG R5-431T R5-471T R5-571TG-7229 R5-471T-51UN R5-571T-59DC R7-371T R7-372T, Acer Aspire 5 A515-51 A515-51G, Acer Aspire V3-371 E3-111 E3-112 ES1-111 ES1-131 ES1-511 ES1-731 ES1-711-P1UV E5-771, Acer Nitro 5 AN515-51 AN515-52 AN515-53, Acer Swift 3 SF314-51 SF314-52 SF314-52G, Acer Spin SP111-31 battery AC14B8K Laptop Battery SPECS: Battery Type: Li-polymer, Voltage: 15.2V, Capacity: 3220mAh, Cells: 4 cells, 100% Brand New. Packages include: 1x for Acer Battery AC14B8K with safety box. Safety Control: FLYTEN has its factory so we can control strictly the production. There are professional engineers to ensure batteries’ quality and safety. All our AC14B8K batteries have passed strict intelligent detection, such as short circuit protection, over-voltage protection, discharge protection, and over-current protection, which ensure both safety and stability. CE-/FCC-/RoHS-Certified. Warranty: Rest assured with 60 days Refund and 12 months Warranty. Since Amazon return windows will close after one month, don’t worry about it, you can click on Seller Store in the right corner “ask a question” and contact Seller Us directly! We are always here for you to solve your problems!
Arabic Language Silicone Keyboard Cover Skin for MacBook Air 13" Macbook Pro with / without Retina Display 13"15" 17" MC184LL/B, NOT COMPATIBLE WITH NEW MacBook Air 13” A1932 (Black) Arabic Language Silicone Keyboard Cover Skin for MacBook Air 13″ Macbook Pro with / without Retina Display 13″15″ 17″ MC184LL/B, NOT COMPATIBLE WITH NEW MacBook Air 13” A1932 (Black) About this item Only compatible with MacBook Air 13″ (Model: A1369 & A1466) , MacBook Pro 13-Inch with DVD Drive (Model: A1278), Pro 13 inch with Retina Display (Model: A1425 & A1502), Pro 15 inch with DVD Drive (Model: A1286), Pro 15 inch with Retina Display (Model: A1398), Pro 17 inch (Model: A1297) and Apple Wireless Bluetooth Keyboard MC184LL/B (A1314). NOT COMPATIBLE WITH NEWEST MacBook Air 13″ 2018 (Model: A1932) Fit for American Version( “Enter” key is a rectangle), DO NOT FIT FOR Europe Version (“Enter” key looks like “7”) Extra slim silicone skin, made it easier for typing. Soft silicone can ELIMINATE THE SOUND when typing FLEXIBLE, WASHABLE, easy to apply and remove for cleaning or disinfecting. Manufactured to the highest quality available, Ultra thin design lets you open and close your computer without any affection
This 5-meter VGA to VGA cable provides a stable analog video connection between PCs, laptops, monitors, and projectors. With a male-to-male design and durable build, it’s ideal for offices, classrooms, and home setups needing a longer VGA extension. The VGA to VGA 5-meter cable is designed to connect computers, laptops, DVRs, or other VGA-enabled devices to monitors, TVs, or projectors. Its extended length makes it perfect for conference rooms, classrooms, and setups where the display is far from the source device. Built with reliable connectors and shielding, it ensures stable signal transmission for clear video output. 5-Meter Length for flexible long-distance connection VGA Male to VGA Male standard 15-pin connector Stable Video Signal for consistent display output Compatible with Monitors & Projectors ideal for presentations Durable Cable Build for long-term use Easy Plug & Play no drivers required Suitable for any device with a VGA port, including desktops, laptops, monitors, projectors, and older display systems. Perfect for presentations, office setups, classrooms, and extended-distance connections.
External Seagate 2TB/4TB HDD Expansion Portable Drive Easily store and access 2TB/4TB of content on the go with Seagate Expansion Portable hard drive This external hard drive for Windows computers makes backup a snap just drag and drop To get set up, connect the portable hard drive to your Windows computer for automatic recognition no software required This USB drive provides plug and play simplicity with the included 18 inch USB 3.0 cable Enjoy long term peace of mind with the included one year limited warranty
Genuine-spec US layout keyboard replacement for MacBook Pro 13″ (Model A1466, Late 2015–Early 2016)—featuring traditional scissor-switch mechanism, backlighting, and full OEM compatibility for reliable, comfortable typing. Compatible With: MacBook Pro 13-inch non-Touch Bar models: Late 2015 (Intel Core i5/i7, Retina, A1466, Model Identifier MacBookPro12,1) Early 2016 (Intel Core i5/i7, Retina, A1466, MacBookPro13,1) Late 2015 (Intel Core i5/i7, Retina, A1466, Model Identifier MacBookPro12,1) Early 2016 (Intel Core i5/i7, Retina, A1466, MacBookPro13,1) Layout: Standard US English (QWERTY) with full-size keys, inverted-T arrow keys, and dedicated function row (F1–F12). Keyboard Type: Traditional scissor-switch mechanism—not Butterfly or Magic Keyboard—known for durability, deeper key travel, and tactile feedback. Integrated Features: Backlit keys for low-light use, ambient light sensor support, and OEM-style ribbon cable for direct logic board connection. Build & Fit: Precision-engineered to match Apple’s original dimensions and mounting points—ensures flush alignment within the top case and consistent key height. Installation Note: Keyboard is secured with screws and minimal adhesive (unlike later glued models), making replacement more accessible. Still requires full top case disassembly and battery disconnect. Suitable for intermediate to advanced technicians.
WiWU Minimalist Laptop Handbag – Lightweight, water-resistant bag with soft interior padding, shock protection, and dual compartments.Available in 14″ and 15.6″ sizes, perfect for secure and stylish daily laptop carry. Model: WiWU Minimalist Laptop Handbag Material: Water-resistant polyester exterior with a soft faux-fur padded interior Available Sizes: 14″ and 15.6″ versions to accommodate most laptops Protection: Built-in anti-collision padding and 360° all-around corner protection Compartments: Main laptop compartment (soft-lined) Front organizer section with inner pockets for cables, chargers, phone, and accessories Compartments: Main laptop compartment (soft-lined) Front organizer section with inner pockets for cables, chargers, phone, and accessories Carrying Options: Top handles for hand carry Detachable shoulder strap Luggage strap for trolley attachment Carrying Options: Top handles for hand carry Detachable shoulder strap Luggage strap for trolley attachment Design Features: Durable YKK zippers, reinforced corners, slim profile Weight: Approx. 703 g (14″), 884 g (15.6″) Use Case: Ideal for work, study, travel, and everyday protection of devices
HT03XL L11119-855 Laptop Battery for HP Pavilion 14-CE 14-CF 14-DF 15-CS 15-DA 15-DB 15-DW 17-by 17-CA Series 15-CS0053CL 15-DW0033NR 15-DA0014DX L11421-542 L11421-2C2 HSTNN-UB7J HSTNN-DB8R HT03041XL About this item Compatible with: HP HT03XL Battery, for HP Pavilion 14-CE 14-CF 14-CK 14-cm 14-DF 14-MA 14Q-CS 14Q-CY 14S-CF 14S-CR 15-CS 15-CW 15-DA 15-DB 15G-DR 15T-DA 15T-DB 17-by 17-CA Series 14-CE0000 14-CE0020TX 14-CE0025TX 14-CE0027TU 14-CE0028TX 14-CE0029TX 14-CE0030TX 14-CE0034TX 14-CE1058WM 14-CE0068ST 14-CE1056WM 14-CE0064ST 14-CE0006DX 14-CF0000 14-CF0014DX 14-CF1015CL 14-CM0000 14-CM0020NR 14-CM0012NR 14Q-CS0000 14Q-CS0006TU 15-CR0000 15-CR0087CL 15-CR0052OD 15-CR0055OD 15-CR0037WM 15-CR0051CL 15-CR0091MS 15-CR0010NR Replacement Battery for HP Pavilion 15-CS0000 15-CS2010NR 15-CS025CL 15-CS2073CL 15-CS2079NR 15-CS1063CL 15-CS0072WM 15-CS0051WM 15-CS1065CL 15-CW0000 15-CW1063WM 15-DA0000 15-DA0066CL 15-DA0002DX 15-DA0079NR 15-DA1005DX 15-DA0032WM 15-DA0033WM 15-DA0073MS 15-DA0012DX 15-DA0071MS 15-DA0086OD 15-DB0000 15-DB0015DX 15-DB0031NR 15-DB0011DX 15-DB0066WM 15-DB0005DX 15-DB0048NR 15-DB0051OD 15-DB0048CA 17-BY0000 17-BY1053DX 17-BY1033DX 17-BY0060NR 17-BY0021DX 17-BY0053CL 17-BY0021CY 17-BY1055CL Laptop Compatible for HP Pavilion 240 G7, 245 G7, 250 G7, 255 G7, 340 G5, 348 G5 Series;P/N: HSTNN-DB8R HSTNN-DB8S HSTNN-IB80 HSTNN-IB8O HSTNN-LB8L HSTNN-LB8M HSTNN-UB7J HT03041XL HTO3XL HT03XL L11119-855 L11421-1C1 L11421-1C2 L11421-2C1 L11421-2C2 L11421 -2C3 L11421-2D1 L11421-2D2 L11421-421 L11421-422 L11421-423 L11421-542 L11421-544 L11421-545 TPN-C136 TPN-I130 TPN-I131 TPN-I132 TPN-I133 TPN-I134 TPN-Q207 TPN-Q208 TPN-Q209 TPN-Q210 Specifications: ht03xl battery for hp, Battery Type: Li-ion Voltage: 11.55V Capacity: 41.7WH 3470mAh;Cells: 3-cell; Color: Black Packages includes: l11119-855 hp battery, with Two Free Screwdrivers; HTO3XL Battery for hp model 15-cs0085cl 15-cs0073cl 15-cs3075cl 15-cs3073c 15t-cs300 15t-cs200 15-da0021cy 15-da0011la 15t-db000 14-cf0013dx 14-cf0051od 15-ef0023dx Compatible devices: HP HT03XL Rechargeable li-ion Battery, for HP Pavilion 14-CE 14-CF 14-CK 14-cm 14-DF 14-DH 14-MA 14Q-CS 14Q-CY 14S-CF 14S-CR 15-CS 15-CW 15-DA 15-DB 15G-DR 15T-DA 15T-DB 17-by 17-CA Series 15-cs0053cl 15-cs1063cl 15-cs2064st 15-cs3063cl 15-cs3075cl 15t-cs200 15-da0032wm 15-da0014dx 17-by0063cl 17-by2075cl 17-by0071cl 17-by1022cl 17-by0088cl 17-by0062st 17-by0020cy 17-by0017cy 17-by1003cy 17-ca1010ds 17-by0019ds 17-by2003ca 17-by3613dx 17-by1972cl 17-ca1031dx 17-ca1061nr 17-ca0054cl
Genuine-spec touchpad flex cable for MacBook Pro 15″ (Model A1707, 2016–2017)—restores full Force Touch functionality, haptic feedback, and precise multi-touch gesture control during trackpad repair or replacement. Compatible With: MacBook Pro 15″ (2016) – Model A1707 (Model Identifier: MacBookPro13,2) MacBook Pro 15″ (2017) – Model A1707 (Model Identifier: MacBookPro14,2) MacBook Pro 15″ (2016) – Model A1707 (Model Identifier: MacBookPro13,2) MacBook Pro 15″ (2017) – Model A1707 (Model Identifier: MacBookPro14,2) Part Type: Touchpad flex cable only — does not include the trackpad housing, Taptic Engine, or mounting hardware. This is the OEM-style ribbon cable that connects the trackpad to the logic board. Function: Transmits: Touch input coordinates Force Touch pressure data Haptic feedback signals to the Taptic Engine Enables full macOS gesture support: Force Click, three-finger lookup, swipe navigation, pinch-to-zoom, and smooth cursor tracking. Touch input coordinates Force Touch pressure data Haptic feedback signals to the Taptic Engine Enables full macOS gesture support: Force Click, three-finger lookup, swipe navigation, pinch-to-zoom, and smooth cursor tracking. OEM-Quality Build: Matches Apple’s original specifications in: Cable length and routing path Connector pitch and ZIF latch design EMI shielding and flex durability Cable length and routing path Connector pitch and ZIF latch design EMI shielding and flex durability Common Use Cases: Replacing a torn, creased, or liquid-damaged original flex cable Completing a trackpad replacement when the original cable is compromised Fixing intermittent trackpad behavior, loss of Force Touch, or complete unresponsiveness Replacing a torn, creased, or liquid-damaged original flex cable Completing a trackpad replacement when the original cable is compromised Fixing intermittent trackpad behavior, loss of Force Touch, or complete unresponsiveness Installation Note: Requires full bottom case removal and battery disconnection. Cable routes under internal components near the right speaker and logic board. Connects via a ZIF (Zero Insertion Force) socket—must be aligned carefully and latched gently. Recommended for experienced or certified technicians only. Requires full bottom case removal and battery disconnection. Cable routes under internal components near the right speaker and logic board. Connects via a ZIF (Zero Insertion Force) socket—must be aligned carefully and latched gently. Recommended for experienced or certified technicians only.
L12M4E01 L12L4A02 Battery for Lenovo G50 G50-70 G50-45 Z710 G400s S510p G510s G500s G40-70 G50-30,IdeaPad Z50,IdeaPad S510p Touch,IdeaPad G505s,IdeaPad S410p About this item This battery type: Li-ion; Voltage: 14.8V Capacity: 2600MAH; Cells: 4-cell;color: Black; 100% Brand New.Fit P/N L12L4A02, L12L4E01, L12M4A02, L12M4E01, L12S4A02, L12S4E01 Compatible Models: Relacement battery for lenovo G400s G40-30 G40-45 G405s G40-70 G40-70M G410s G50 G500s G50-30 G50-45 G505s G505s G50-70 G50-70A G50-70M G50-75 G50-80 G510s G510s S410p S410p S435 S510p S510p Z40 Z40-70 Z40-75 Z50 Z50-70 Z70 Z70-70 Z70-80 Z710 Compatible P/N: Lenovo battery L12L4A02 L12L4E01 L12M4A02 L12M4E01 L12S4A02 L12S4E01 121500171 121500172 121500173 121500174 121500175 121500176 90202869 All FTYTEN products are 100% Brand New; Grade A Li-ion battery cells ensure fast charges; Rigorous quality control; Overcharger and Discharger Circuit Protection, CE-/FCC-/RoHS-Certified for safety.
The S3 2-in-1 Bluetooth Headset and Speaker is a versatile audio device that seamlessly transitions between personal listening and shared sound experiences. Designed for both convenience and high-quality audio performance, it caters to diverse user needs. Key Features: Dual Functionality: Operate as traditional over-ear headphones for private listening or twist the earcups outward to activate the external speaker mode, allowing you to share music with others. Superior Sound Quality: Equipped with advanced audio technology, the S3 delivers crisp and clear sound in both headphone and speaker modes, ensuring an immersive listening experience. Active Noise Cancellation (ANC): Reduces ambient noise, enabling users to enjoy music without external interruptions. Comfortable Design: Features extra-padded ear cushions and an adjustable headband, providing long-lasting comfort for extended use. Foldable and Portable: The foldable design makes it easy to carry, making it an ideal companion for travel and daily commutes. Multiple Playback Options: Supports Bluetooth 5.0 for wireless streaming, NFC for quick pairing, TF card slot for direct music playback, and FM radio functionality, offering a variety of listening choices. Long Battery Life: Built-in 600mAh rechargeable battery provides up to 14 hours of playback in headphone mode and 6.5 hours in speaker mode, ensuring uninterrupted entertainment. Integrated Controls and Microphone: Built-in controls allow for easy navigation between tracks, volume adjustment, and call management. The integrated microphone ensures clear hands-free communication.
A sleek, versatile pre-owned Lenovo ThinkPad L13 Yoga Gen 1 with 13.3" touchscreen, 360° hinge, 10th Gen Core i7, 16GB RAM, and 256GB SSD—ideal for professionals and students who need flexibility, performance, and portability.
TP-Link AC1200 Archer C50 Wireless Dual Band Router Support smooth 4K streaming with AC1200 Wi-Fi 4 external antennas provide stable wireless connections and optimal coverage Easy network management at your fingertips with TP-Link Tether Supports IGMP Proxy/Snooping, Bridge, and Tag VLAN to optimize IPTV streaming Supports Access Point mode to create a new Wi-Fi access point TP-Link AC1200 Archer C50 Wireless Dual Band Router Support smooth 4K streaming with AC1200 Wi-Fi 4 external antennas provide stable wireless connections and optimal coverage Easy network management at your fingertips with TP-Link Tether Supports IGMP Proxy/Snooping, Bridge, and Tag VLAN to optimize IPTV streaming Supports Access Point mode to create a new Wi-Fi access point TP-Link Archer C50 – AC1200 Wireless Dual Band Router Wireless Speed: Up to 1200 Mbps (300 Mbps on 2.4GHz + 867 Mbps on 5GHz) Wi-Fi Standard: 802.11ac – 3x faster than wireless N speeds Bands: Dual Band (2.4GHz & 5GHz) for reduced interference and better performance Antenna: 4 External Antennas for strong and stable wireless coverage Ports: 4× LAN, 1× WAN (10/100 Mbps) Advanced Features: Parental Controls, Guest Network, IPv6 Support, Access Control Security: WPA/WPA2 encryption for secure wireless connections Ease of Use: Easy setup with TP-Link Tether App Ideal For: HD streaming, online gaming, and high-speed downloads in homes and small offices
Fast-charging feature available on select iPhone and iPad models.
MacBook Air 13″ Retina A1932(2018-2019-2020) Display Assembly (Silver) MacBook Air 13″ Retina Display 2019 A1932 (EMC 3184 MacBookAir8,2) 1.6 GHz MacBook Air 13″ Retina Display 2020 A2179 (EMC 3302 MacBookAir9,1) 1.1 GHz Core i3 A2179 (EMC 3302 MacBookAir9,1) 1.1 GHz Core i5 A2179 (EMC 3302 MacBookAir9,1) 1.2 GHz Core i7 MacBook Air 13” Retina Display Late 2018 A1932 (EMC 3184 MacBookAir8,1) 1.6 GHz
WiWU ZM‑901 – Sturdy foldable aluminum stand with adjustable angles and silicone pads, weighing just 900 g.Enhances posture, airflow, and workspace ergonomics while staying compact and travel-friendly. Model: WiWU ZM‑901 Material: Metal (aluminum/carbon steel) frame with silicone pads for grip Dimensions (Folded): 260 × 225.5 × 53 mm Package Size: 290 × 250 × 50 mm Net Weight: Approx. 900 g Compatibility: Fits laptops, tablets, and smartphones up to ~17 ” (some listings note 15.6″ limit, but device capacity varies) Features: Adjustable angle configuration, detachable foldable design for portability, silicone surface pads for anti-slip and vibration reduction Build & Design: Durable yet lightweight, crafted to enhance airflow and promote ergonomic posture
Digital Device Laptop Keyboard Compatible for MacBook AIR 13″ A1369 A1466 (MID 2011- MID 2017) US Layout 【Unique】Pls see detail compatible models in description below. 【Safe】Easy for you replace your faulty, cracked or broken keyboard ,seller remind that you should replace the keyboard in the off state. All pictures are taken from the real item, please check carefully before bidding, Replacement and high quality, Replace your faulty, cracked or broken keyboard. Each keyboard is tested before shipping Compatibility: MacBook Air 13″ A1369 Mid 2011: MC965LL/A (1.7 GHz Core i5) Mid 2011: MC966LL/A (1.7 GHz Core i5) Mid 2011: MD226LL/A (1.8 GHz Core i7) Compatibility: MacBook Air 13″ A1466 Mid 2012: MD231LL/A (1.8 GHz Core i5) Mid 2012: MD232LL/A (1.8 GHz Core i5) Mid 2012: MD232LL/A (2.0 GHz Core i7) Mid 2013: MD760LL/A (1.3 GHz Core i5) Mid 2013: MD761LL/A (1.3 GHz Core i5) Mid 2013: MD761LL/A (1.7 GHz Core i7) Early 2014: MD760LL/B (1.4 GHz Core i5) Early 2014: MD761LL/B (1.4 GHz Core i5) Early 2014: MD761LL/B (1.7 GHz Core i7) Compatibility: Early 2015: MJVE2LL/A (1.6 GHz Core i5 or 2.2 GHz Core i7) Early 2015: MJVG2LL/A (1.6 GHz Core i5 or 2.2 GHz Core i7) Identifying Numbers APN #: 661-6059, 661-6635, 661-7480
This replacement touchpad for MacBook Air A2179 comes in Rose Gold and is sold without the flex cable. Perfect for restoring smooth trackpad performance, it’s ideal for repair technicians and users replacing a damaged or non-working touchpad. The MacBook Air A2179 Touchpad (Rose Gold) is a high-quality replacement part designed to restore full trackpad functionality to your laptop. Whether your original touchpad is unresponsive, physically damaged, or experiencing tracking issues, this replacement provides a reliable solution. Please note that this unit is without the flex cable, meaning it requires the original flex or a separate replacement flex for installation. Ideal for repair shops and technicians, it ensures smooth navigation and precise control. Compatible with MacBook Air A2179 Rose Gold Color Match for original look and finish Replacement Touchpad Only (without flex cable) Restores Smooth Trackpad Functionality Precision Tracking & Gesture Support (when installed correctly) Ideal for Repairs & Replacements High-Quality Build designed for durability and long use Designed specifically for Apple MacBook Air A2179 models. Recommended for technicians and repair shops or users replacing a faulty touchpad. Ensure compatibility before purchase and note that a flex cable is required for installation.
BATTERY ACER AS16A5K AS16A8K Battery for Acer Aspire E5-523 E5-553 E5-576 E5-774G N16Q2 E5-576G E5-575G E5-475 F5-573 E5-575-52JF E5-575-33BM E5-575G-76YK E5-575-54SM E5-575G-57D4 E5-576-392H E5-575-54E8 4ICR19/66 About this item 【Battery type】 Voltage:14.8V; Capacity: 2200mAh /33Wh Color:black 【Note】It is not compatible with E5-575G-53VG, E5-575G-549D,E5-575G-5341,E5-575G-33BM, E5-575G-51VI. Before placing an order, please ensure your old battery’s model is AS16A5K， KAS16A7K， and AS16A8K (14.8V 4-cell). Please do not order this battery if your old battery’s model is s AS16B5J or AS16B8J (10.95V /11.1V 6-cell). They can not replace each other 【Compatible 】Laptop Models for Acer Aspire E15 E5-475 E5-475G E5-523 E5-523G E5-553 E5-553G E5-575 E5-575G E5-575T E5-575TG E5-576 E5-576G E5-774 E5-774G F5-573 F5-573G F5-573T F5-771 F5-771G Series E5-575-52IF E5-575-53EJ E5-575G-59EE E5-575G-53VG E5-575G-57KJ E5-575-74RC E5-575-72N3 E5-575G-52RJ E576G-5762 E5-575G-53VG E5-575G-549D E5-575G-5341 E5-575G-33BM E5-575G-51VI E5-575G-59EE E5-575G-59GV E5-575G-765N E5-575G-76YK 【Compatible Part Number】AS16A5K AS16A7K AS16A8K 4ICR19/66 N16Q1 N16Q2 KT.00605.002 KT.00405.001 KT.00407.004 KT.0040G.007 【Security】All our products are Certified by CE, and FCC for safety. Strict guidelines for compatibility, and standards compliance for environment safety.
