Product Search

    SEARCH NOW FOR ALL YOUR BECKHOFF SOLUTIONS

    Radwell is here to supply you with all your plant floor needs.

    Radwell is not an authorized distributor, reseller or representative of the products featured on this website. All product names, trademarks, brands and logos used on this site are the property of their respective owners. The depiction, description or sale of products featuring these names, trademarks, brands and logos is for identification purposes only and is not intended to indicate any affiliation with or authorization by any rights holder.

    Filter Results
    Results 101-150 of 966.
    BECKHOFF CX1020-0111

    BECKHOFF

    CX1020-0111

    DISCONTINUED BY MANUFACTURER, BASIC CPU MODULE, CPU WITH 2 ETHERNET PORTS, 2 X USB AND DVI-I, OPERATING SYSTEM WINDOWS CE, WITH TWINCAT PLC RUNTIME, 8 W, 0 TO +50 DEGREES C, IP20
    ✓ IN STOCK!
    Buy Surplus As Low As CAN$2,286.95
    CAN$2,286.95
    Repair Yours Contact Us
    BECKHOFF CX1030-0122-1002

    BECKHOFF

    CX1030-0122-1002

    DISCONTINUED BY MANUFACTURER, CPU MODULE 24 VDC
    Buy Surplus As Low As CAN$2,286.42
    CAN$2,286.42
    Repair Yours Contact Us
    BECKHOFF CP9932-0-15

    BECKHOFF

    CP9932-0-15

    DISCONTINUED BY MANUFACTURER, COMMUNICATION CARD, FOR CP6232 SERIES
    ✓ IN STOCK!
    Buy Surplus As Low As CAN$2,230.26
    CAN$2,230.26
    Repair Yours Contact Us
    BECKHOFF AX5206-0000-0202

    BECKHOFF

    AX5206-0000-0202

    SERVO DRIVE, SERIES AX5000, 2-CHANNEL, INPUT: 17.1 AMP 1-PHASE 100-240 VAC 50/60 HZ OR 13.2 AMP 3-PHASE 100-480 VAC 50/60 HZ, OUTPUT: 4.5 AMP 1 PHASE 0-240 VAC 0-599 HZ / 6 AMP 3 PHASE 0-240 ...
    ✓ IN STOCK!
    CAN$3,628.62 Buy Surplus As Low As CAN$2,220.27
    CAN$2,220.27
    Repair Yours Contact Us
    BECKHOFF C6930-0010

    BECKHOFF

    C6930-0010

    CONTROL CABINET INDUSTRIAL PCHOUSING- INDUSTRIAL PC FOR SPACE-SAVING CONTROL CABINET INSTALLATION- MOUNTING SHEET AT THE REAR WALL- ALL CONNECTORS ON THE FRONT- STATUS LEDS- LITHIUM BATTERY ...
    ✓ IN STOCK!
    CAN$5,975.10 Buy Surplus As Low As CAN$2,156.70
    CAN$2,156.70
    Repair Yours Contact Us
    BECKHOFF CX5130-0121

    BECKHOFF

    CX5130-0121

    INDUSTRIAL PC, INTEL ATOM E3827 PROCESSOR, 1.75 GHZ, 2 CORES (TC3: 40), 4 GB INTERNAL MAIN MEMORY, DDR3 RAM (NOT EXPANDABLE), 2 X RJ45 ETHERNET CONNECTOR 10/100/100, DIN RAIL MOUNT, CFAST CA ...
    ✓ IN STOCK!
    CAN$3,614.90 Buy Surplus As Low As CAN$2,147.17
    CAN$2,147.17
    Repair Yours Contact Us
    BECKHOFF CX1010-0121

    BECKHOFF

    CX1010-0121

    BASIC CPU MODULE, CPU WITH ETHERNET + COM1 (STANDARD), 2 X USB AND DVI, OPERATING SYSTEM WINDOWS XP EMBEDDED, WITH TWINCAT PLC RUNTIME, 8 W, 0 TO +50 DEGREES C, IP20
    ✓ IN STOCK!
    CAN$3,481.97 Buy Surplus As Low As CAN$2,089.47
    CAN$2,089.47
    Repair Yours Contact Us
    BECKHOFF AX5118-0000-0202

    BECKHOFF

    AX5118-0000-0202

    DIGITAL COMPACT SERVO DRIVE, 1-AXIS MODULE, 100480 V AC, RATED OUTPUT CURRENT 18 A, ETHERCAT INTERFACE, OCT, HARDWARE VERSION 2.0, FIRMWARE VERSION = 2.10
    ✓ IN STOCK!
    CAN$4,025.03 Buy Surplus As Low As CAN$2,088.41
    CAN$2,088.41
    Repair Yours Contact Us
    BECKHOFF AX2503-B750-0000

    BECKHOFF

    AX2503-B750-0000

    DIGITAL COMPACT SERVO DRIVE, MASTER MODULE, 115-230 V, RATED CURRENT: 3 AMP, SERCOS INTERFACE
    ✓ IN STOCK!
    CAN$5,800.87 Buy Surplus As Low As CAN$2,060.43
    CAN$2,060.43
    Repair Yours Contact Us
    BECKHOFF CP6904-0001-0000

    BECKHOFF

    CP6904-0001-0000

    "ECONOMY" BUILD-IN CONTROL PANEL WITH DVI/USB EXTENDED INTERFACE- 24 INCH TFT DISPLAY, RESOLUTION 1920 X 1200- TOUCH SCREEN- 2 PORT USB SOCKET INSIDE THE CONTROL PANEL BACKPLANE- ALUMINIUM F ...
    ✓ IN STOCK!
    CAN$4,559.37 Buy Surplus As Low As CAN$2,060.01
    CAN$2,060.01
    Repair Yours Contact Us
    BECKHOFF AX5201-0000-0202

    BECKHOFF

    AX5201-0000-0202

    SERVO DRIVE, DIGITAL COMPACT, 2 CHANNEL, 100-480 VAC, 1.5 RATED AMP, 5 AMP PEAK, ETHERCAT
    ✓ IN STOCK!
    CAN$3,210.44 Buy Surplus As Low As CAN$2,049.29
    CAN$2,049.29
    Repair Yours Contact Us
    BECKHOFF AX5101-0000

    BECKHOFF

    AX5101-0000

    DIGITAL COMPACT SERVO DRIVE, 1-AXIS MODULE, 100.480 V AC, RATED CURRENT 1.5 A,ETHERCAT INTERFACE
    ✓ IN STOCK!
    CAN$3,300.20 Buy Surplus As Low As CAN$2,040.10
    CAN$2,040.10
    Repair Yours Contact Us
    BECKHOFF CP70111002

    BECKHOFF

    CP70111002

    OPERATOR INTERFACE, TOUCHSCREEN DISPLAY, 9-3/4 IN X 7-1/4 IN
    ✓ IN STOCK!
    Buy Surplus As Low As CAN$2,032.84
    CAN$2,032.84
    Repair Yours Contact Us
    BECKHOFF AX5112-0000

    BECKHOFF

    AX5112-0000

    DISCONTINUED BY MANUFACTURER, SERVO DRIVE, DIGITAL COMPACT, 1-AXIS MODULE, 100-480 VAC, 12 AMP, 90-160 WATT, ETHERCAT INTERFACE
    ✓ IN STOCK!
    Buy Surplus As Low As CAN$2,032.59
    CAN$2,032.59
    Repair Yours Contact Us
    BECKHOFF AM3052-0G21-0000

    BECKHOFF

    AM3052-0G21-0000

    SERVO MOTOR, 400-480 VAC, 4.28 ARMS, 1.65 KW, 2500 RPM, 7.67NM, SMOOTH SHAFT, MULTI-TURN ABSOLUTE ENCODE, WITH HOLDING BRAKE, 24 VDC BRAKE, IP54
    ✓ IN STOCK!
    CAN$4,543.40 Buy Surplus As Low As CAN$2,003.80
    CAN$2,003.80
    Repair Yours Contact Us
    BECKHOFF M2400-040

    BECKHOFF

    M2400-040

    ANALOG OUTPUT MODULE, ALUMINIUM HOUSING, X000D 4 ANALOG PORTS, 0 INPUTS /16 OUTPUTS
    ✓ IN STOCK!
    CAN$2,973.76 Buy Surplus As Low As CAN$1,963.14
    CAN$1,963.14
    Repair Yours Contact Us
    BECKHOFF CP7002-0000-0010

    BECKHOFF

    CP7002-0000-0010

    DISCONTINUED BY MANUFACTURER, CONTROL PANEL, CP70XX WITH CP-LINK INTERFACE, 15-INCH DISPLAY, 1024 X 768 RESOLUTION, WITHOUT KEYS
    ✓ IN STOCK!
    Buy Surplus As Low As CAN$1,946.10
    CAN$1,946.10
    Repair Yours Contact Us
    BECKHOFF CX1001-0111

    BECKHOFF

    CX1001-0111

    BASIC CPU MODULE, 128 MB RAM INTERNAL MEMORY EXTENSION, CPU WITH ETHERNET + COM1 (STANDARD), 2 X USB AND DVI, OPERATING SYSTEM WINDOWS CE, WITH TWINCAT PLC RUNTIME
    ✓ IN STOCK!
    CAN$3,214.79 Buy Surplus As Low As CAN$1,929.75
    CAN$1,929.75
    Repair Yours Contact Us
    BECKHOFF CX5120-0135

    BECKHOFF

    CX5120-0135

    *MUST PURCHASE AS ACCESSORY WITH CPU ONLY*, DIN RAIL INDUSTRIAL PC- PROCESSOR INTEL ATOM E3815, 1.46 GHZ, 1 CORE (TC3: 40)- FLASH MEMORY: SLOT FOR CFAST CARD AND FOR MICROSD CARD (CARDS ARE ...
    ✓ IN STOCK!
    CAN$2,464.09 Buy Surplus As Low As CAN$1,873.12
    CAN$1,873.12
    Repair Yours Contact Us
    BECKHOFF AX2506-B510-0000

    BECKHOFF

    AX2506-B510-0000

    DIGITAL COMPACT SERVO DRIVE, MASTER MODULE, 115-230 V, RATED CURRENT 6 AMP, CANOPEN INTERFACE
    ✓ IN STOCK!
    CAN$5,903.95 Buy Surplus As Low As CAN$1,843.22
    CAN$1,843.22
    Repair Yours Contact Us
    BECKHOFF CX1020-0012

    BECKHOFF

    CX1020-0012

    BASIC CPU MODULE, CPU WITH 2 ETHERNET PORTS, OPERATING SYSTEM WINDOWS CE, WITH TWINCAT PLC/NC RUNTIME, 8 W, 0 TO +50 DEGREES C, IP20
    ✓ IN STOCK!
    CAN$3,772.37 Buy Surplus As Low As CAN$1,833.64
    CAN$1,833.64
    Repair Yours Contact Us
    BECKHOFF CP2916-0010

    BECKHOFF

    CP2916-0010

    CONTROL PANEL, MULTI-TOUCH, WITH CP-LINK 4, THE ONE CABLE DISPLAY LINK, 15.6-INCH DISPLAY, 1366 X 768 RESOLUTION, DISPLAY ONLY
    ✓ IN STOCK!
    CAN$3,053.84 Buy Surplus As Low As CAN$1,832.61
    CAN$1,832.61
    Repair Yours Contact Us
    BECKHOFF CP2916-0000

    BECKHOFF

    CP2916-0000

    CONTROL PANEL, 24 VDC, MULTI-TOUCH BUILT-IN, DVI/USB EXTENDED INTERFACE, ALUMINUM HOUSING WITH GLASS FRONT, 0TO +55 DEGREES C, IP20/65
    ✓ IN STOCK!
    CAN$2,841.91 Buy Surplus As Low As CAN$1,814.06
    CAN$1,814.06
    Repair Yours Contact Us
    BECKHOFF AX2513-B750-0000

    BECKHOFF

    AX2513-B750-0000

    DIGITAL COMPACT SERVO DRIVE, MASTER MODULE, 230-400 V, RATED CURRENT 3 AMP, SERCOS INTERFACE
    ✓ IN STOCK!
    CAN$6,412.16 Buy Surplus As Low As CAN$1,786.91
    CAN$1,786.91
    Repair Yours Contact Us
    BECKHOFF CX1000-0012

    BECKHOFF

    CX1000-0012

    BASIC CPU MODULE, 32 MB RAM INTERNAL MEMORY EXTENSION, CPU WITH ETHERNET + COM1 (STANDARD), OPERATING SYSTEM WINDOWS CE, WITH TWINCAT PLC/NC RUNTIME
    ✓ IN STOCK!
    CAN$2,972.30 Buy Surplus As Low As CAN$1,784.54
    CAN$1,784.54
    Repair Yours Contact Us
    BECKHOFF CP7703-0021-0030

    BECKHOFF

    CP7703-0021-0030

    DISCONTINUED BY MANUFACTURER, INDUSTRIAL ALL IN ONE PC, 19" DISPLAY, TOUCHSCREEN ACCUTOUCH, 24 VDC POWER SUPPLY, 1.6 GHZ ZP530 CPU, 8X256MB DDR2-RAM/ 800 MHZ
    ✓ IN STOCK!
    Buy Surplus As Low As CAN$1,742.44
    CAN$1,742.44
    Repair Yours Contact Us
    BECKHOFF C6640-0030

    BECKHOFF

    C6640-0030

    INDUSTRIAL PC, 7 SLOT, ALL SLOTS FOR UP TO 210 MM LONG PLUG-IN CARDS, 2 BRACKETS TO LEAD OUT SERIAL INTERFACES
    ✓ IN STOCK!
    CAN$4,758.63 Buy Surplus As Low As CAN$1,727.68
    CAN$1,727.68
    Repair Yours Contact Us
    BECKHOFF CX1020-0000

    BECKHOFF

    CX1020-0000

    BASIC CPU MODULE, CPU WITH 2 ETHERNET PORTS, WITHOUT OPERATING SYSTEM, WITHOUT TWINCAT, 8 W, 0 TO +50 DEGREES C, IP20
    ✓ IN STOCK!
    CAN$2,995.90 Buy Surplus As Low As CAN$1,711.77
    CAN$1,711.77
    Repair Yours Contact Us
    BECKHOFF BK4500

    BECKHOFF

    BK4500

    INTERBUS BUS COUPLER, 24 VDC (-15/+20%), WITH FIRBE OPTIC CONNECTION, 70 MA INPUT CURRENT, 64 BUS TERMINALS
    ✓ IN STOCK!
    CAN$3,795.61 Buy Surplus As Low As CAN$1,709.04
    CAN$1,709.04
    Repair Yours Contact Us
    BECKHOFF AX5112-0000-0200

    BECKHOFF

    AX5112-0000-0200

    DIGITAL SERVO DRIVE, AX5000 SERIES, SINGLE CHANNEL, 1 AXIS, 100-480 VAC, 12 AMP OUTPUT, ETHERCAT INTERFACE, SERCOS, IP20
    ✓ IN STOCK!
    CAN$2,658.96 Buy Surplus As Low As CAN$1,691.72
    CAN$1,691.72
    Repair Yours Contact Us
    BECKHOFF M2400-021

    BECKHOFF

    M2400-021

    ANALOG OUTPUT MODULE, 2 ANALOG PORTS, 8 INPUTS, 8 OUTPUTS, ALUMINIUM HOUSING
    ✓ IN STOCK!
    CAN$2,218.70 Buy Surplus As Low As CAN$1,687.26
    CAN$1,687.26
    Repair Yours Contact Us
    BECKHOFF AX8206-0200-0000

    BECKHOFF

    AX8206-0200-0000

    DUAL-AXIS MODULE 2 X 6 A, FEEDBACK: OCT, ENDAT® 3, TWINSAFE: SAFE MOTION, INTEGRATED TWINSAFE LOGIC
    ✓ IN STOCK!
    CAN$2,655.76 Buy Surplus As Low As CAN$1,664.90
    CAN$1,664.90
    Repair Yours Contact Us
    BECKHOFF CX1001-0120

    BECKHOFF

    CX1001-0120

    BASIC CPU MODULE, 128 MB RAM INTERNAL MEMORY EXTENSION, CPU WITH ETHERNET + COM1 (STANDARD), 2 X USB AND DVI, OPERATING SYSTEM WINDOWS XP EMBEDDED, WITHOUT TWINCAT
    ✓ IN STOCK!
    CAN$3,540.05 Buy Surplus As Low As CAN$1,654.15
    CAN$1,654.15
    Repair Yours Contact Us
    BECKHOFF AX5101-0000-0202

    BECKHOFF

    AX5101-0000-0202

    DIGITAL COMPACT SERVO DRIVE, 1-AXIS MODULE, 100…480 V AC, RATED OUTPUT CURRENT 1.5 A, , ETHERCAT INTERFACE, OCT, HARDWARE VERSION 2.0, FIRMWARE VERSION = 2.10
    ✓ IN STOCK!
    CAN$2,167.88 Buy Surplus As Low As CAN$1,648.05
    CAN$1,648.05
    Repair Yours Contact Us
    BECKHOFF CP7802-1076-0000

    BECKHOFF

    CP7802-1076-0000

    DISCONTINUED BY MANUFACTURER, OPERATOR INTERFACE, 15 INCH TOUCHSCREEN, WITH OUT KEYBOARD, 24 V
    ✓ IN STOCK!
    Buy Surplus As Low As CAN$1,646.22
    CAN$1,646.22
    Repair Yours Contact Us
    BECKHOFF C6640-0020

    BECKHOFF

    C6640-0020

    CONTROL CABINET PCHOUSING- 7 SLOT ATX INDUSTRIAL PC FOR CONTROL CABINET INSTALLATION- ALL SLOTS FOR UP TO 210 MM LONG PLUG-IN CARDS- DRIVES AND PLUG-IN CARDS EASILY ACCESSIBLE- 2 BRACKETS TO ...
    ✓ IN STOCK!
    CAN$4,449.33 Buy Surplus As Low As CAN$1,638.25
    CAN$1,638.25
    Repair Yours Contact Us
    BECKHOFF CP7802-0011-0010

    BECKHOFF

    CP7802-0011-0010

    CONTROL PANEL- 15 INCH TFT DISPLAY, RESOLUTION 1024 X 768, TOUCH SCREEN, 2 PORT USB SOCKET INSIDE THE CONTROL PANEL FRONT, DIN 8 PIN WITH SCREW-ON CAP IP 65 WITH ADAPTER CABLE FROM DIN 8 PIN ...
    ✓ IN STOCK!
    CAN$3,630.07 Buy Surplus As Low As CAN$1,633.53
    CAN$1,633.53
    Repair Yours Contact Us
    BECKHOFF CP7922-0001-0000

    BECKHOFF

    CP7922-0001-0000

    DISCONTINUED BY MANUFACTURER, ECONOMY CONTROL PANEL, 15 INCH TFT DISPLAY, 1024 X 768 RESOLUTION, TOUCH SCREEN, ALUMINIUM HOUSING, IP65 PROTECTION CLASS, FRONT LAMINATE WITH INTEGRATED KEYS, ...
    ✓ IN STOCK!
    Buy Surplus As Low As CAN$1,631.54
    CAN$1,631.54
    Repair Yours Contact Us
    BECKHOFF CP3907-0000

    BECKHOFF

    CP3907-0000

    MULTI-TOUCH CONTROL PANEL CP39XX-0000 WITH DVI/USB EXTENDED INTERFACE, 7-INCH DISPLAY 800 X 480, DISPLAY ONLY, MULTI-FINGER TOUCH SCREEN WITH DVI/USB EXTENDED
    ✓ IN STOCK!
    CAN$2,134.48 Buy Surplus As Low As CAN$1,623.37
    CAN$1,623.37
    Repair Yours Contact Us
    BECKHOFF CP6901-0001-0000

    BECKHOFF

    CP6901-0001-0000

    ECONOMY BUILT-IN CONTROL PANEL, WITH DVI/USB EXTENDED INTERFACE, 12-INCH DISPLAY, 800 X 600, 24 VDC, WITHOUT KEYS, TOUCH SCREEN, 0 TO +55 DEGREES C
    ✓ IN STOCK!
    CAN$3,441.94 Buy Surplus As Low As CAN$1,605.52
    CAN$1,605.52
    Repair Yours Contact Us
    BECKHOFF CX9010-0002

    BECKHOFF

    CX9010-0002

    DISCONTINUED BY MANUFACTURER, POWER SUPPLY MODULE, 24 VDC, BUS INTERFACE, FOR ETHERCAT TERMINAL, W/O DVI/2 X USB, W/ TWINACT-PLC/NC RUNTIME, DIN RAIL MOUNT
    ✓ IN STOCK!
    Buy Surplus As Low As CAN$1,600.14
    CAN$1,600.14
    Repair Yours Contact Us
    BECKHOFF CX9020-0112

    BECKHOFF

    CX9020-0112

    CPU MODULE, WINDOWS EMBEDDED COMPACT 7, TWINCAT 2 NC PTP RUNTIME
    ✓ IN STOCK!
    CAN$2,099.63 Buy Surplus As Low As CAN$1,595.78
    CAN$1,595.78
    Repair Yours Contact Us
    BECKHOFF CX1000-0111

    BECKHOFF

    CX1000-0111

    BASIC CPU MODULE, 32 MB RAM INTERNAL MEMORY EXTENSION, CPU WITH ETHERNET + COM1 (STANDARD), 2 X USB AND DVI, OPERATING SYSTEM WINDOWS CE, WITH TWINCAT PLC RUNTIME
    ✓ IN STOCK!
    CAN$2,645.60 Buy Surplus As Low As CAN$1,588.52
    CAN$1,588.52
    Repair Yours Contact Us
    BECKHOFF CP7021-0001

    BECKHOFF

    CP7021-0001

    CONTROL PANEL CP70XX WITH CP-LINK INTERFACE, 12-INCH DISPLAY 800 X 600, NUMERIC KEYBOARD, TOUCH SCREEN
    ✓ IN STOCK!
    CAN$6,371.51 Buy Surplus As Low As CAN$1,544.99
    CAN$1,544.99
    Repair Yours Contact Us
    BECKHOFF CP9035

    BECKHOFF

    CP9035

    DISCONTINUED BY MANUFACTURER, CP LINK CARD, PCI SLOT, PLUG-IN, 8 CHANNEL
    ✓ IN STOCK!
    Buy Surplus As Low As CAN$1,542.27
    CAN$1,542.27
    Repair Yours Contact Us
    BECKHOFF AX2523-B750-0000

    BECKHOFF

    AX2523-B750-0000

    DIGITAL COMPACT SERVO DRIVE, AXIS MODULE, RATED CURRENT 3 AMP, 120-240 VAC, SERCOS INTERFACE
    ✓ IN STOCK!
    CAN$4,501.29 Buy Surplus As Low As CAN$1,533.23
    CAN$1,533.23
    Repair Yours Contact Us
    BECKHOFF CX1020-0011

    BECKHOFF

    CX1020-0011

    BASIC CPU MODULE, CPU WITH 2 ETHERNET PORTS, OPERATING SYSTEM WINDOWS CE, WITH TWINCAT PLC RUNTIME, 8 W, 0 TO +50 DEGREES C, IP20
    ✓ IN STOCK!
    CAN$3,229.31 Buy Surplus As Low As CAN$1,503.58
    CAN$1,503.58
    Repair Yours Contact Us
    BECKHOFF AX5106-0000-0000

    BECKHOFF

    AX5106-0000-0000

    DIGITAL COMPACT SERVO DRIVE, RATED CURRENT 6A, 1-AXIS DRIVE, 100-480 VAC, ETHERCAT INTERFACE, INTEGRATED MAINS FILTER, 0-599 HZ
    ✓ IN STOCK!
    CAN$2,498.94 Buy Surplus As Low As CAN$1,499.95
    CAN$1,499.95
    Repair Yours Contact Us
    BECKHOFF C6015-0020

    BECKHOFF

    C6015-0020

    ULTRA-COMPACT INDUSTRIAL PC, ALUMINUM ZINC DIE-CAST HOUSING, 24 VDC, 2 X USB 3.0 / 1 X DISPLAY PORT, 1 SLOT FOR M.2 SSD, 2 X 100/1000BASE-T ON-BOARD, IP20
    ✓ IN STOCK!
    CAN$1,962.20 Buy Surplus As Low As CAN$1,492.61
    CAN$1,492.61
    Repair Yours Contact Us
    BECKHOFF AX5103-0000-0200

    BECKHOFF

    AX5103-0000-0200

    DIGITAL COMPACT SERVO DRIVE, 1-AXIS MODULE, 100…480 V AC, RATED OUTPUT CURRENT 3 A, , ETHERCAT INTERFACE, OCT, HARDWARE VERSION 2.0, FIRMWARE VERSION 2.06
    ✓ IN STOCK!
    CAN$2,315.91 Buy Surplus As Low As CAN$1,478.01
    CAN$1,478.01
    Repair Yours Contact Us
    Previous Next
    1 2 3 4 5 6 7 8 9 10 11