United Kingdom

Laptops without keybord backlight

 prices on 139 models  
no backlight
clear
Show
Laptop Acer Aspire 3 A315-24P
  • display 15.6 ", 1920x1080 (16:9)
  • CPU AMD, Ryzen 3
  • GPU Radeon 610M
  • RAM 8 GB
  • storage 128 GB
  • weight 1.78 kg
  • 45 %
Acer Aspire 3 A315-24P
0
0
2
0
display 15.6 ", 1920x1080 (16:9), CPU AMD, Ryzen 3, GPU Radeon 610M, RAM 8 GB, storage 128 GB, weight 1.78 kg, 45 %
A315-24P-R7VH
Ryzen 37320U8 GBRadeon 610MSSD M.2 NVMe128 GB £329.00 .. £389.00 
A315-24P-R922
Ryzen 37320U8 GBRadeon 610MSSD M.2 NVMe128 GB £329.99 .. £399.00 
Laptop HP 250 G8
  • display 15.6 ", 1920x1080 (16:9)
  • CPU Intel, Core i3
  • GPU UHD Graphics Xe G4 48EUs
  • RAM 8 GB
  • storage 256 GB
  • weight 1.74 kg
  • 45 %
HP 250 G8
0
0
3
0
display 15.6 ", 1920x1080 (16:9), CPU Intel, Core i3, GPU UHD Graphics Xe G4 48EUs, RAM 8 GB, storage 256 GB, weight 1.74 kg, 45 %
2X7L0EA
Core i31115G48 GBUHD Graphics Xe G4 48EUsSSD M.2 NVMe256 GB £298.99
2X7V0EA
Core i31115G48 GBUHD Graphics Xe G4 48EUsSSD M.2 NVMe256 GB £450.00 
Laptop Lenovo IdeaPad 3 15IAU7
  • display 15.6 ", 1920x1080 (16:9)
  • CPU Intel, Core i3 - Core i7
  • GPU Iris Xe Graphics G7 80EUs - UHD Graphics 64EUs
  • RAM 4 / 8 GB
  • storage 128 - 512 GB
  • weight 1.63 kg
  • 45 %
Lenovo IdeaPad 3 15IAU7
display 15.6 ", 1920x1080 (16:9), CPU Intel, Core i3 - Core i7, GPU Iris Xe Graphics G7 80EUs - UHD Graphics 64EUs, RAM 4 / 8 GB, storage 128 - 512 GB, weight 1.63 kg, 45 %
82RK009TUK
Core i31215U4 GBUHD Graphics 64EUsSSD M.2 NVMe128 GB £279.00 
82RK00YJPB
Core i31215U8 GBUHD Graphics 64EUsSSD M.2 NVMe512 GB £374.49 .. £374.00 
82RK006MPB
Core i31215U8 GBUHD Graphics 64EUsSSD M.2 NVMe512 GB £451.99
82RK006LPB
Core i31215U8 GBUHD Graphics 64EUsSSD M.2 NVMe512 GB £528.99
82RK00RTUK
Core i51235U8 GBIris Xe Graphics G7 80EUsSSD M.2 NVMe256 GB £399.00
82RK006PPB
Core i51235U8 GBIris Xe Graphics G7 80EUsSSD M.2 NVMe512 GB £588.99
82RK00RSUK
Core i71255U8 GBIris Xe Graphics G7 96EUsSSD M.2 NVMe512 GB £528.99
Laptop HP 240 G8
  • display 14 ", 1920x1080 (16:9)
  • CPU Intel, Core i7
  • GPU Iris Plus Graphics G7
  • RAM 8 GB
  • storage 256 GB
  • weight 1.47 kg
  • 45 %
HP 240 G8
from £525.49
display 14 ", 1920x1080 (16:9), CPU Intel, Core i7, GPU Iris Plus Graphics G7, RAM 8 GB, storage 256 GB, weight 1.47 kg, 45 %
2X7R5EA
Core i71065G78 GBIris Plus Graphics G7SSD M.2 NVMe256 GB £525.49
Laptop Lenovo V15 G2 ALC
  • display 15.6 ", 1920x1080 (16:9)
  • CPU AMD, Ryzen 3 - Ryzen 7
  • GPU Vega 6 - Vega 8
  • RAM 8 GB
  • storage 256 / 512 GB
  • weight 1.7 kg
  • 45 %
Lenovo V15 G2 ALC
0
0
0
5
display 15.6 ", 1920x1080 (16:9), CPU AMD, Ryzen 3 - Ryzen 7, GPU Vega 6 - Vega 8, RAM 8 GB, storage 256 / 512 GB, weight 1.7 kg, 45 %
82KD008VUK
Ryzen 35300U8 GBVega 6SSD M.2 NVMe256 GB £376.99
82KD008NUK
Ryzen 55500U8 GBVega 7SSD M.2 NVMe256 GB £395.50
82KD008XUK
Ryzen 55500U8 GBVega 7SSD M.2 NVMe512 GB £402.50
82KD00EKSP
Ryzen 55500U8 GBVega 7SSD M.2 NVMe512 GB £405.99
82KD00EPSP
Ryzen 55500U8 GBVega 7SSD M.2 NVMe256 GB £406.99
82KD008WUK
Ryzen 55500U8 GBVega 7SSD M.2 NVMe256 GB £484.99
82KD00ERSP
Ryzen 75700U8 GBVega 8SSD M.2 NVMe512 GB £462.99
82KD0007UK
Ryzen 75700U8 GBVega 8SSD M.2 NVMe256 GB £497.98 .. £592.00 
Laptop HP 15s-eq1000
  • display 15.6 ", 1920x1080 (16:9)
  • CPU AMD, Athlon
  • GPU Vega 3
  • RAM 8 GB
  • storage 256 GB
  • weight 1.7 kg
  • 45 %
HP 15s-eq1000
from £219.95
0
0
0
3
display 15.6 ", 1920x1080 (16:9), CPU AMD, Athlon, GPU Vega 3, RAM 8 GB, storage 256 GB, weight 1.7 kg, 45 %
15S-EQ1116NQ
Athlon3150U8 GBVega 3SSD M.2 NVMe256 GB £219.95
Laptop Asus Vivobook Go 12 E210MA
  • display 11.6 ", 1366x768 (16:9)
  • CPU Intel, Celeron
  • GPU UHD Graphics 600
  • RAM 4 GB
  • storage 64 GB
  • weight 1.05 kg
  • 45 %
Asus Vivobook Go 12 E210MA
display 11.6 ", 1366x768 (16:9), CPU Intel, Celeron, GPU UHD Graphics 600, RAM 4 GB, storage 64 GB, weight 1.05 kg, 45 %
GJ181WS
CeleronN40204 GBUHD Graphics 600eMMC64 GB £149.00 .. £228.00 
GJ325WS
CeleronN40204 GBUHD Graphics 600eMMC64 GB £159.00 .. £239.00 
GJ001T
CeleronN40204 GBUHD Graphics 600eMMC64 GB £184.95
GJ181TS
CeleronN40204 GBUHD Graphics 600eMMC64 GB £199.99
Laptop HP Pavilion 15-eh1000
  • display 15.6 ", 1920x1080 (16:9)
  • CPU AMD, Ryzen 3 - Ryzen 7
  • GPU Vega 6 - Vega 8
  • RAM 4 - 16 GB
  • storage 256 / 512 GB
  • weight 1.75 kg
  • 45 %
HP Pavilion 15-eh1000
display 15.6 ", 1920x1080 (16:9), CPU AMD, Ryzen 3 - Ryzen 7, GPU Vega 6 - Vega 8, RAM 4 - 16 GB, storage 256 / 512 GB, weight 1.75 kg, 45 %
15-EH1012NA
Ryzen 35300U4 GBVega 6SSD M.2 NVMe256 GB £410.00 .. £539.00 
15-EH1013NA
Ryzen 55500U8 GBVega 7SSD M.2 NVMe256 GB £449.00 .. £523.00 
 
no backlight
Clear +3
Laptop Asus VivoBook 15 X1500EA
  • display 15.6 ", 1920x1080 (16:9)
  • CPU Intel, Pentium - Core i5
  • GPU Iris Xe Graphics G7 80EUs / UHD Graphics Xe G4 48EUs
  • RAM 4 / 8 GB
  • storage 256 / 512 GB
  • weight 1.8 kg
  • 45 %
Asus VivoBook 15 X1500EA
display 15.6 ", 1920x1080 (16:9), CPU Intel, Pentium - Core i5, GPU Iris Xe Graphics G7 80EUs / UHD Graphics Xe G4 48EUs, RAM 4 / 8 GB, storage 256 / 512 GB, weight 1.8 kg, 45 %
X00EA-EJ2737W
Core i31115G48 GBUHD Graphics Xe G4 48EUsSSD M.2 NVMe256 GB £343.81 .. £498.00 
X00EA-EJ2365W
Core i31115G48 GBUHD Graphics Xe G4 48EUsSSD M.2 NVMe256 GB £389.00 .. £523.00 
X00EA-BQ2734W
Core i51135G74 GBIris Xe Graphics G7 80EUsSSD M.2 NVMe512 GB £298.75 .. £461.00 
X00EA-EJ2670W
Pentium75058 GBUHD Graphics Xe G4 48EUsSSD M.2 NVMe256 GB £298.99 .. £477.00 
 
no backlight
Clear +1
Laptop Lenovo IdeaPad Flex 3 Chrome 15IJL7
  • display 15.6 ", 1920x1080 (16:9)
  • CPU Intel, Pentium
  • GPU UHD Graphics
  • RAM 8 GB
  • storage 128 GB
  • weight 1.9 kg
  • 45 %
Lenovo IdeaPad Flex 3 Chrome 15IJL7
from £299.00
display 15.6 ", 1920x1080 (16:9), CPU Intel, Pentium, GPU UHD Graphics, RAM 8 GB, storage 128 GB, weight 1.9 kg, 45 %
82T3000LUK
PentiumN60008 GBUHD GraphicseMMC128 GB £299.00 
Laptop HP 15-fc0000
  • display 15.6 ", 1920x1080 (16:9)
  • CPU AMD, Ryzen 3 / Ryzen 5
  • GPU Radeon 610M
  • RAM 4 / 8 GB
  • storage 128 / 256 GB
  • weight 1.59 kg
  • 45 %
HP 15-fc0000
display 15.6 ", 1920x1080 (16:9), CPU AMD, Ryzen 3 / Ryzen 5, GPU Radeon 610M, RAM 4 / 8 GB, storage 128 / 256 GB, weight 1.59 kg, 45 %
15-FC0018NA
Ryzen 37320U4 GBRadeon 610MSSD M.2 NVMe128 GB £249.00 .. £397.00 
15-FC0516SA
Ryzen 37320U4 GBRadeon 610MSSD M.2 NVMe128 GB £279.00 .. £332.00 
15-FC0001SA
Ryzen 57520U8 GBRadeon 610MSSD M.2 NVMe256 GB £349.99
15-FC0017NA
Ryzen 57520U8 GBRadeon 610MSSD M.2 NVMe256 GB £349.99 .. £562.00 
15-FC0008NA
Ryzen 57520U8 GBRadeon 610MSSD M.2 NVMe256 GB £353.60 .. £363.00 
15-FC0514SA
Ryzen 57520U8 GBRadeon 610MSSD M.2 NVMe256 GB £399.00 .. £449.00 
Laptop Asus ExpertBook B1 B1502CBA
  • display 15.6 ", 1920x1080 (16:9)
  • CPU Intel, Core i3 / Core i5
  • GPU Iris Xe Graphics G7 80EUs / UHD Graphics 64EUs
  • RAM 8 / 16 GB
  • storage 256 / 512 GB
  • weight 1.69 kg
  • 45 %
Asus ExpertBook B1 B1502CBA
display 15.6 ", 1920x1080 (16:9), CPU Intel, Core i3 / Core i5, GPU Iris Xe Graphics G7 80EUs / UHD Graphics 64EUs, RAM 8 / 16 GB, storage 256 / 512 GB, weight 1.69 kg, 45 %
502CBA-EJ0433
Core i31215U8 GBUHD Graphics 64EUsSSD M.2 NVMe256 GB £411.49
502CBA-NJ1108X
Core i31215U8 GBUHD Graphics 64EUsSSD M.2 NVMe256 GB £452.49
502CBA-EJ0438W
Core i51235U16 GBIris Xe Graphics G7 80EUsSSD M.2 NVMe512 GB £505.49
 
no backlight
Clear +2
Laptop HP Pavilion 15-eg3000
  • display 15.6 ", 1920x1080 (16:9)
  • CPU Intel, Processor - Core i7
  • GPU Iris Xe Graphics G7 80EUs - UHD Graphics Xe G4 48EUs
  • RAM 4 - 16 GB
  • storage 256 / 512 GB
  • weight 1.75 kg
  • 45 %
HP Pavilion 15-eg3000
display 15.6 ", 1920x1080 (16:9), CPU Intel, Processor - Core i7, GPU Iris Xe Graphics G7 80EUs - UHD Graphics Xe G4 48EUs, RAM 4 - 16 GB, storage 256 / 512 GB, weight 1.75 kg, 45 %
15-EG3009NA
Core i31315U8 GBUHD Graphics 64EUsSSD M.2 NVMe256 GB £379.99 .. £479.00 
15-EG3021NA
Core i31315U8 GBUHD Graphics 64EUsSSD M.2 NVMe256 GB £479.00
15-EG3005NA
Core i51335U8 GBIris Xe Graphics G7 80EUsSSD M.2 NVMe512 GB £499.00 .. £609.00 
15-EG3020NA
Core i51335U8 GBIris Xe Graphics G7 80EUsSSD M.2 NVMe512 GB £499.00
15-EG3019NA
Core i51335U16 GBMX550SSD M.2 NVMe512 GB £569.99
15-EG3001NA
Core i71355U16 GBIris Xe Graphics G7 96EUsSSD M.2 NVMe512 GB £799.00
15-EG3017NA
Core i71355U16 GBIris Xe Graphics G7 96EUsSSD M.2 NVMe512 GB £799.00
15-EG3003NA
Core i71355U16 GBIris Xe Graphics G7 96EUsSSD M.2 NVMe512 GB £1,001.01
15-EG3012NA
ProcessorU3004 GBUHD Graphics Xe G4 48EUsSSD M.2 NVMe256 GB £299.00 .. £369.00 
Laptop Asus Vivobook 17 X1702ZA
  • display 17.3 ", 1920x1080 (16:9)
  • CPU Intel, Core i3
  • GPU UHD Graphics 64EUs
  • RAM 8 GB
  • storage 256 GB
  • weight 2.1 kg
  • 45 %
Asus Vivobook 17 X1702ZA
from £569.99
display 17.3 ", 1920x1080 (16:9), CPU Intel, Core i3, GPU UHD Graphics 64EUs, RAM 8 GB, storage 256 GB, weight 2.1 kg, 45 %
X02ZA-AU119W
Core i31220P8 GBUHD Graphics 64EUsSSD M.2 NVMe256 GB £569.99
Laptop HP 17-cp2000
  • display 17.3 ", 1920x1080 (16:9)
  • CPU AMD, Ryzen 5
  • GPU Radeon 610M
  • RAM 8 GB
  • storage 512 GB
  • weight 2.08 kg
  • 45 %
HP 17-cp2000
from £499.00
display 17.3 ", 1920x1080 (16:9), CPU AMD, Ryzen 5, GPU Radeon 610M, RAM 8 GB, storage 512 GB, weight 2.08 kg, 45 %
17-CP2003NA
Ryzen 57520U8 GBRadeon 610MSSD M.2512 GB £499.00
Laptop Asus Vivobook Go 15 OLED E1504FA
  • display 15.6 ", 1920x1080 (16:9)
  • CPU AMD, Ryzen 5
  • GPU Radeon 610M
  • RAM 8 / 16 GB
  • storage 256 / 512 GB
  • weight 1.63 kg
  • - / 45 %
Asus Vivobook Go 15 OLED E1504FA
display 15.6 ", 1920x1080 (16:9), CPU AMD, Ryzen 5, GPU Radeon 610M, RAM 8 / 16 GB, storage 256 / 512 GB, weight 1.63 kg, - / 45 %
E04FA-NJ313
Ryzen 57520U8 GBRadeon 610MSSD M.2 NVMe512 GB £370.99
E04FA-L1669W
Ryzen 57520U8 GBRadeon 610MSSD M.2 NVMe256 GB £399.99 .. £452.00 
E04FA-NJ311W
Ryzen 57520U16 GBRadeon 610MSSD M.2 NVMe512 GB £413.21 .. £692.00 
Laptop Lenovo IdeaPad Flex 3 11IGL05
  • display 11.6 ", 1366x768 (16:9)
  • CPU Intel, Celeron
  • GPU UHD Graphics 600
  • RAM 4 GB
  • storage 64 GB
  • weight 1.2 kg
  • 45 %
Lenovo IdeaPad Flex 3 11IGL05
from £179.00
display 11.6 ", 1366x768 (16:9), CPU Intel, Celeron, GPU UHD Graphics 600, RAM 4 GB, storage 64 GB, weight 1.2 kg, 45 %
82B20071UK
CeleronN40204 GBUHD Graphics 600eMMC64 GB £179.00
Laptop HP ProBook 440 G10
  • display 14 ", 1920x1080 (16:9)
  • CPU Intel, Core i3 - Core i7
  • GPU Iris Xe Graphics G7 80EUs - UHD Graphics 64EUs
  • RAM 8 / 16 GB
  • storage 256 / 512 GB
  • weight 1.42 kg
  • 45 %
HP ProBook 440 G10
display 14 ", 1920x1080 (16:9), CPU Intel, Core i3 - Core i7, GPU Iris Xe Graphics G7 80EUs - UHD Graphics 64EUs, RAM 8 / 16 GB, storage 256 / 512 GB, weight 1.42 kg, 45 %
8A5V8EA
Core i31315U8 GBUHD Graphics 64EUsSSD M.2 NVMe256 GB £635.99
8A5V9EA
Core i51335U8 GBIris Xe Graphics G7 80EUsSSD M.2 NVMe256 GB £719.99 .. £935.00 
8A5W0EA
Core i51335U16 GBIris Xe Graphics G7 80EUsSSD M.2 NVMe512 GB £779.99 .. £949.00 
967V9ET
Core i51335U16 GBIris Xe Graphics G7 80EUsSSD M.2 NVMe256 GB £785.79 .. £861.00 
8A5W1EA
Core i71355U16 GBIris Xe Graphics G7 96EUsSSD M.2 NVMe512 GB £958.80 .. £1,124.00 
 
no backlight
Clear +1
Laptop HP Pavilion x360 14-ek1000
  • display 14 ", 1920x1080 (16:9)
  • CPU Intel, Processor - Core i7
  • GPU Iris Xe Graphics G7 80EUs - UHD Graphics Xe G4 48EUs
  • RAM 4 - 16 GB
  • storage 128 - 1024 GB
  • weight 1.51 kg
  • 45 %
HP Pavilion x360 14-ek1000
display 14 ", 1920x1080 (16:9), CPU Intel, Processor - Core i7, GPU Iris Xe Graphics G7 80EUs - UHD Graphics Xe G4 48EUs, RAM 4 - 16 GB, storage 128 - 1024 GB, weight 1.51 kg, 45 %
14-EK1004NA
Core i31315U8 GBUHD Graphics 64EUsSSD M.2 NVMe256 GB £399.99 .. £499.00 
14-EK1000NA
Core i51335U8 GBIris Xe Graphics G7 80EUsSSD M.2 NVMe512 GB £599.00
14-EK1012NA
Core i51335U16 GBIris Xe Graphics G7 80EUsSSD M.2 NVMe1024 GB £679.00
14-EK1010NA
Core i71355U16 GBIris Xe Graphics G7 96EUsSSD M.2 NVMe1024 GB £899.00
14-EK1550SA
ProcessorU3004 GBUHD Graphics Xe G4 48EUsSSD M.2 NVMe128 GB £296.64 .. £314.00 
Laptop Asus Chromebook CX1 CX1400CKA
  • display 14 ", 1920x1080 (16:9)
  • CPU Intel, Celeron / Pentium
  • GPU UHD Graphics
  • RAM 4 GB
  • storage 64 / 128 GB
  • weight 1.5 kg
  • - / 45 %
Asus Chromebook CX1 CX1400CKA
display 14 ", 1920x1080 (16:9), CPU Intel, Celeron / Pentium, GPU UHD Graphics, RAM 4 GB, storage 64 / 128 GB, weight 1.5 kg, - / 45 %
400CKA-EK0078
PentiumN60004 GBUHD GraphicseMMC64 GB £183.13 .. £364.00 
400CKA-EK0131
PentiumN60004 GBUHD GraphicseMMC128 GB £197.97 .. £299.00 
400CKA-EK0132
CeleronN45004 GBUHD GraphicseMMC128 GB £322.77
Laptop Lenovo IdeaPad Flex 5 14IAU7
  • display 14 ", 1920x1200 (16:10)
  • CPU Intel, Core i3 - Core i7
  • GPU Iris Xe Graphics G7 80EUs - UHD Graphics 64EUs
  • RAM 8 GB
  • storage 128 - 512 GB
  • weight 1.5 kg
  • 45 %
Lenovo IdeaPad Flex 5 14IAU7
display 14 ", 1920x1200 (16:10), CPU Intel, Core i3 - Core i7, GPU Iris Xe Graphics G7 80EUs - UHD Graphics 64EUs, RAM 8 GB, storage 128 - 512 GB, weight 1.5 kg, 45 %
82R7008JUK
Core i31215U8 GBUHD Graphics 64EUsSSD M.2 NVMe128 GB £429.00 
82R7008KUK
Core i51235U8 GBIris Xe Graphics G7 80EUsSSD M.2 NVMe256 GB £549.00 
82R7008LUK
Core i71255U8 GBIris Xe Graphics G7 96EUsSSD M.2 NVMe512 GB £699.00 
Laptop HP ProBook 455 G10
  • display 15.6 ", 1920x1080 (16:9)
  • CPU AMD, Ryzen 5 / Ryzen 7
  • GPU Vega 7 / Vega 8
  • RAM 8 / 16 GB
  • storage 256 / 512 GB
  • weight 1.74 kg
  • 45 %
HP ProBook 455 G10
display 15.6 ", 1920x1080 (16:9), CPU AMD, Ryzen 5 / Ryzen 7, GPU Vega 7 / Vega 8, RAM 8 / 16 GB, storage 256 / 512 GB, weight 1.74 kg, 45 %
8A5W9EA
Ryzen 57530U8 GBVega 7SSD M.2 NVMe256 GB £635.99
967V8ET
Ryzen 57530U8 GBVega 7SSD M.2 NVMe256 GB £663.01 .. £716.00 
8A5X0EA
Ryzen 57530U16 GBVega 7SSD M.2 NVMe512 GB £719.99
8A5X1EA
Ryzen 77730U16 GBVega 8SSD M.2 NVMe512 GB £815.99 .. £983.00 
Laptop Asus Chromebook CX1 CX1400CMA
  • display 14 ", 1920x1080 (16:9)
  • CPU Intel, Celeron
  • GPU UHD Graphics 600
  • RAM 4 GB
  • storage 128 GB
  • weight 1.5 kg
  • 45 %
Asus Chromebook CX1 CX1400CMA
display 14 ", 1920x1080 (16:9), CPU Intel, Celeron, GPU UHD Graphics 600, RAM 4 GB, storage 128 GB, weight 1.5 kg, 45 %
400CMA-EB0130
CeleronN40204 GBUHD Graphics 600eMMC128 GB £178.99 .. £360.00 
Laptop HP 14s-dq0000
  • display 14 ", 1366x768 (16:9)
  • CPU Intel, Celeron
  • GPU UHD Graphics 600
  • RAM 4 GB
  • storage 128 GB
  • weight 1.46 kg
  • 45 %
HP 14s-dq0000
display 14 ", 1366x768 (16:9), CPU Intel, Celeron, GPU UHD Graphics 600, RAM 4 GB, storage 128 GB, weight 1.46 kg, 45 %
14S-DQ0034NA
CeleronN41204 GBUHD Graphics 600SSD M.2128 GB £154.99 .. £319.00 
14S-DQ0518SA
CeleronN41204 GBUHD Graphics 600SSD M.2128 GB £169.14 .. £249.00 
24 more item(s)
1 2 3 4 5 ... 6
Filters
Price
from£ up to£ 
Brands
Device type
Features
Screen size
Screen resolution
Screen type
Screen surface
Refresh rate
Display features
CPU
CPU code name
CPU series
Processor cores
CPU frequency
RAM
Max. RAM
RAM type
RAM frequency
RAM slots
GPU
Dedicated GPU
Max. connected monitors
Drive
Drive size
Weight
Inputs & Outputs
USB A
USB type C
Network connection
Multimedia
Extra features & security
Aspect ratio
Brightness
Colour gamut
Keyboard backlight colour
Operating system
Material
Colour
Release year
Clear parameters