Fiber Optic Cable Assemblies 800G Active Optical cable, OSFP-OSFP,ROUND CABLE,MMF,OFNR/LSZH,100M,PULL TAB,0-70C,ROHS
Coherent FCBR8X0RE2CX0
FCBR8X0RE2CX0
Coherent
1:
₱139,288.16
Hindi Naka-stock
Bagong Produkto
# ng Piyesa ng Mouser
508-FCBR8X0RE2CX0
Bagong Produkto
Coherent
Fiber Optic Cable Assemblies 800G Active Optical cable, OSFP-OSFP,ROUND CABLE,MMF,OFNR/LSZH,100M,PULL TAB,0-70C,ROHS
Hindi Naka-stock
1
₱139,288.16
2
₱123,677.46
Bumili
Min.: 1
Mult.: 1
Mga detalye
OSFP
OSFP
100 m
Bulk
Fiber Optic Cable Assemblies 200G QSFP-DD BREAKOUT to 2x QSFP28 100G Y-SHAPE ACTIVE OPTICAL CABLE,BREAKOUT POINT FROM 200G TRANSCEIVER,1M, MMF, LSZH/OFNR,PULL TAB,0 70C,ROHS
Coherent FCBR925QE1C01C
FCBR925QE1C01C
Coherent
1:
₱20,033.20
Hindi Naka-stock
# ng Piyesa ng Mouser
508-FCBR925QE1C01C
Coherent
Fiber Optic Cable Assemblies 200G QSFP-DD BREAKOUT to 2x QSFP28 100G Y-SHAPE ACTIVE OPTICAL CABLE,BREAKOUT POINT FROM 200G TRANSCEIVER,1M, MMF, LSZH/OFNR,PULL TAB,0 70C,ROHS
Hindi Naka-stock
1
₱20,033.20
2
₱18,842.46
5
₱18,425.44
10
₱18,028.14
25
₱17,761.92
Bumili
Min.: 1
Mult.: 1
Mga detalye
Fiber Optic Cable Assemblies 200G QSFP-DD BREAKOUT to 2x QSFP28 100G Y-SHAPE ACTIVE OPTICAL CABLE,BREAKOUT POINT FROM 200G TRANSCEIVER,2M, MMF, LSZH/OFNR,PULL TAB,0 70C,ROHS
Coherent FCBR925QE1C02C
FCBR925QE1C02C
Coherent
1:
₱20,208.94
Hindi Naka-stock
# ng Piyesa ng Mouser
508-FCBR925QE1C02C
Coherent
Fiber Optic Cable Assemblies 200G QSFP-DD BREAKOUT to 2x QSFP28 100G Y-SHAPE ACTIVE OPTICAL CABLE,BREAKOUT POINT FROM 200G TRANSCEIVER,2M, MMF, LSZH/OFNR,PULL TAB,0 70C,ROHS
Hindi Naka-stock
1
₱20,208.94
2
₱19,007.76
5
₱18,586.68
10
₱18,186.48
25
₱17,917.94
Bumili
Min.: 1
Mult.: 1
Mga detalye
Fiber Optic Cable Assemblies 200G QSFP-DD BREAKOUT to 2x QSFP28 100G Y-SHAPE ACTIVE OPTICAL CABLE,BREAKOUT POINT FROM 200G TRANSCEIVER,3M, MMF, LSZH/OFNR,PULL TAB,0 70C,ROHS
Coherent FCBR925QE1C03C
FCBR925QE1C03C
Coherent
1:
₱20,472.26
Hindi Naka-stock
# ng Piyesa ng Mouser
508-FCBR925QE1C03C
Coherent
Fiber Optic Cable Assemblies 200G QSFP-DD BREAKOUT to 2x QSFP28 100G Y-SHAPE ACTIVE OPTICAL CABLE,BREAKOUT POINT FROM 200G TRANSCEIVER,3M, MMF, LSZH/OFNR,PULL TAB,0 70C,ROHS
Hindi Naka-stock
1
₱20,472.26
2
₱19,256.00
5
₱18,829.12
10
₱18,423.70
25
₱18,151.68
Bumili
Min.: 1
Mult.: 1
Mga detalye
Fiber Optic Cable Assemblies 200G QSFP-DD BREAKOUT to 2x QSFP28 100G Y-SHAPE ACTIVE OPTICAL CABLE,BREAKOUT POINT FROM 200G TRANSCEIVER,5M, MMF, LSZH/OFNR,PULL TAB,0 70C,ROHS
Coherent FCBR925QE1C05C
FCBR925QE1C05C
Coherent
1:
₱20,823.74
Hindi Naka-stock
# ng Piyesa ng Mouser
508-FCBR925QE1C05C
Coherent
Fiber Optic Cable Assemblies 200G QSFP-DD BREAKOUT to 2x QSFP28 100G Y-SHAPE ACTIVE OPTICAL CABLE,BREAKOUT POINT FROM 200G TRANSCEIVER,5M, MMF, LSZH/OFNR,PULL TAB,0 70C,ROHS
Hindi Naka-stock
1
₱20,823.74
2
₱19,586.60
5
₱19,152.76
10
₱18,739.80
25
₱18,463.14
Bumili
Min.: 1
Mult.: 1
Mga detalye
Fiber Optic Cable Assemblies 200G QSFP-DD BREAKOUT to 2x QSFP28 100G Y-SHAPE ACTIVE OPTICAL CABLE,BREAKOUT POINT FROM 200G TRANSCEIVER,7M, MMF, LSZH/OFNR,PULL TAB,0 70C,ROHS
Coherent FCBR925QE1C07C
FCBR925QE1C07C
Coherent
1:
₱21,263.38
Hindi Naka-stock
# ng Piyesa ng Mouser
508-FCBR925QE1C07C
Coherent
Fiber Optic Cable Assemblies 200G QSFP-DD BREAKOUT to 2x QSFP28 100G Y-SHAPE ACTIVE OPTICAL CABLE,BREAKOUT POINT FROM 200G TRANSCEIVER,7M, MMF, LSZH/OFNR,PULL TAB,0 70C,ROHS
Hindi Naka-stock
1
₱21,263.38
2
₱19,999.56
5
₱19,556.44
10
₱19,135.36
25
₱18,852.90
Bumili
Min.: 1
Mult.: 1
Mga detalye
Fiber Optic Cable Assemblies 200G QSFP-DD BREAKOUT to 2x QSFP28 100G Y-SHAPE ACTIVE OPTICAL CABLE,BREAKOUT POINT FROM 200G TRANSCEIVER,10M, MMF, LSZH/OFNR,PULL TAB,0 70C,ROHS
Coherent FCBR925QE1C10C
FCBR925QE1C10C
Coherent
1:
₱21,878.18
Hindi Naka-stock
# ng Piyesa ng Mouser
508-FCBR925QE1C10C
Coherent
Fiber Optic Cable Assemblies 200G QSFP-DD BREAKOUT to 2x QSFP28 100G Y-SHAPE ACTIVE OPTICAL CABLE,BREAKOUT POINT FROM 200G TRANSCEIVER,10M, MMF, LSZH/OFNR,PULL TAB,0 70C,ROHS
Hindi Naka-stock
1
₱21,878.18
2
₱20,578.40
5
₱20,122.52
10
₱19,688.68
25
₱19,398.10
Bumili
Min.: 1
Mult.: 1
Mga detalye
Fiber Optic Cable Assemblies 200G QSFP-DD BREAKOUT to 2x QSFP28 100G Y-SHAPE ACTIVE OPTICAL CABLE,BREAKOUT POINT FROM 200G TRANSCEIVER,15M, MMF, LSZH/OFNR,PULL TAB,0 70C,ROHS
Coherent FCBR925QE1C15C
FCBR925QE1C15C
Coherent
1:
₱22,844.46
Hindi Naka-stock
# ng Piyesa ng Mouser
508-FCBR925QE1C15C
Coherent
Fiber Optic Cable Assemblies 200G QSFP-DD BREAKOUT to 2x QSFP28 100G Y-SHAPE ACTIVE OPTICAL CABLE,BREAKOUT POINT FROM 200G TRANSCEIVER,15M, MMF, LSZH/OFNR,PULL TAB,0 70C,ROHS
Hindi Naka-stock
1
₱22,844.46
2
₱21,487.26
5
₱21,011.08
10
₱20,558.68
25
₱20,254.76
Bumili
Min.: 1
Mult.: 1
Mga detalye
Fiber Optic Cable Assemblies 200G QSFP-DD BREAKOUT to 2x QSFP28 100G Y-SHAPE ACTIVE OPTICAL CABLE,BREAKOUT POINT FROM 200G TRANSCEIVER,20M, MMF, LSZH/OFNR,PULL TAB,0 70C,ROHS
Coherent FCBR925QE1C20C
FCBR925QE1C20C
Coherent
1:
₱23,811.32
Hindi Naka-stock
# ng Piyesa ng Mouser
508-FCBR925QE1C20C
Coherent
Fiber Optic Cable Assemblies 200G QSFP-DD BREAKOUT to 2x QSFP28 100G Y-SHAPE ACTIVE OPTICAL CABLE,BREAKOUT POINT FROM 200G TRANSCEIVER,20M, MMF, LSZH/OFNR,PULL TAB,0 70C,ROHS
Hindi Naka-stock
1
₱23,811.32
2
₱22,396.12
5
₱21,900.22
10
₱21,428.68
25
₱21,112.00
Bumili
Min.: 1
Mult.: 1
Mga detalye
Fiber Optic Cable Assemblies 200G QSFP-DD BREAKOUT to 2x QSFP28 100G Y-SHAPE ACTIVE OPTICAL CABLE,BREAKOUT POINT FROM 200G TRANSCEIVER,25M, MMF, LSZH/OFNR,PULL TAB,0 70C,ROHS
Coherent FCBR925QE1C25C
FCBR925QE1C25C
Coherent
1:
₱24,865.76
Hindi Naka-stock
# ng Piyesa ng Mouser
508-FCBR925QE1C25C
Coherent
Fiber Optic Cable Assemblies 200G QSFP-DD BREAKOUT to 2x QSFP28 100G Y-SHAPE ACTIVE OPTICAL CABLE,BREAKOUT POINT FROM 200G TRANSCEIVER,25M, MMF, LSZH/OFNR,PULL TAB,0 70C,ROHS
Hindi Naka-stock
1
₱24,865.76
2
₱23,387.92
5
₱22,869.98
10
₱22,377.56
25
₱22,046.96
Bumili
Min.: 1
Mult.: 1
Mga detalye
Fiber Optic Cable Assemblies 200G QSFP-DD BREAKOUT to 2x QSFP28 100G Y-SHAPE ACTIVE OPTICAL CABLE,BREAKOUT POINT FROM 200G TRANSCEIVER,30M, MMF, LSZH/OFNR,PULL TAB,0 70C,ROHS
Coherent FCBR925QE1C30C
FCBR925QE1C30C
Coherent
1:
₱25,832.04
Hindi Naka-stock
# ng Piyesa ng Mouser
508-FCBR925QE1C30C
Coherent
Fiber Optic Cable Assemblies 200G QSFP-DD BREAKOUT to 2x QSFP28 100G Y-SHAPE ACTIVE OPTICAL CABLE,BREAKOUT POINT FROM 200G TRANSCEIVER,30M, MMF, LSZH/OFNR,PULL TAB,0 70C,ROHS
Hindi Naka-stock
1
₱25,832.04
2
₱24,297.36
5
₱23,759.12
10
₱23,246.98
25
₱22,903.62
Bumili
Min.: 1
Mult.: 1
Mga detalye
Fiber Optic Cable Assemblies 200G QSFP-DD BREAKOUT to 2x QSFP28 100G Y-SHAPE ACTIVE OPTICAL CABLE,BREAKOUT POINT FROM 200G TRANSCEIVER,50M, MMF, LSZH/OFNR,PULL TAB,0 70C,ROHS
Coherent FCBR925QE1C50C
FCBR925QE1C50C
Coherent
1:
₱29,874.06
Hindi Naka-stock
# ng Piyesa ng Mouser
508-FCBR925QE1C50C
Coherent
Fiber Optic Cable Assemblies 200G QSFP-DD BREAKOUT to 2x QSFP28 100G Y-SHAPE ACTIVE OPTICAL CABLE,BREAKOUT POINT FROM 200G TRANSCEIVER,50M, MMF, LSZH/OFNR,PULL TAB,0 70C,ROHS
Hindi Naka-stock
1
₱29,874.06
2
₱27,327.86
5
₱27,102.24
10
₱26,884.74
25
₱26,487.44
Bumili
Min.: 1
Mult.: 1
Mga detalye
Fiber Optic Cable Assemblies 200G QSFP-DD BREAKOUT to 2x QSFP28 100G Y-SHAPE ACTIVE OPTICAL CABLE,BREAKOUT POINT FROM 200G TRANSCEIVER,100M, MMF, LSZH/OFNR,PULL TAB,0 70C,ROHS
Coherent FCBR925QE1CX0C
FCBR925QE1CX0C
Coherent
1:
₱39,890.66
Hindi Naka-stock
# ng Piyesa ng Mouser
508-FCBR925QE1CX0C
Coherent
Fiber Optic Cable Assemblies 200G QSFP-DD BREAKOUT to 2x QSFP28 100G Y-SHAPE ACTIVE OPTICAL CABLE,BREAKOUT POINT FROM 200G TRANSCEIVER,100M, MMF, LSZH/OFNR,PULL TAB,0 70C,ROHS
Hindi Naka-stock
1
₱39,890.66
2
₱35,776.72
5
₱34,197.38
Bumili
Min.: 1
Mult.: 1
Mga detalye
Fiber Optic Cable Assemblies 8X 50 Gbps, 1M, Ethernet, Quadwire cable, QSFP-DD breakout to 2x QSFP56, MMF, Round Cable, OFNR-LSZH, 0/70 C operation, ROHS,Gen2
Coherent FCBR950QE2C01
FCBR950QE2C01
Coherent
1:
₱43,230.30
Hindi Naka-stock
Bagong Produkto
# ng Piyesa ng Mouser
508-FCBR950QE2C01
Bagong Produkto
Coherent
Fiber Optic Cable Assemblies 8X 50 Gbps, 1M, Ethernet, Quadwire cable, QSFP-DD breakout to 2x QSFP56, MMF, Round Cable, OFNR-LSZH, 0/70 C operation, ROHS,Gen2
Hindi Naka-stock
1
₱43,230.30
2
₱39,483.50
Bumili
Min.: 1
Mult.: 1
Mga detalye
QSFP-DD
QSFP56
1 m
Bulk
Fiber Optic Cable Assemblies 8X 50 Gbps, 2M, Ethernet, Quadwire cable, QSFP-DD breakout to 2x QSFP56, MMF, Round Cable, OFNR-LSZH, 0/70 C operation, ROHS,Gen3
Coherent FCBR950QE2C02
FCBR950QE2C02
Coherent
1:
₱43,484.92
Hindi Naka-stock
Bagong Produkto
# ng Piyesa ng Mouser
508-FCBR950QE2C02
Bagong Produkto
Coherent
Fiber Optic Cable Assemblies 8X 50 Gbps, 2M, Ethernet, Quadwire cable, QSFP-DD breakout to 2x QSFP56, MMF, Round Cable, OFNR-LSZH, 0/70 C operation, ROHS,Gen3
Hindi Naka-stock
1
₱43,484.92
2
₱39,716.08
Bumili
Min.: 1
Mult.: 1
Mga detalye
QSFP-DD
QSFP56
2 m
Bulk
Fiber Optic Cable Assemblies 8X 50 Gbps, 3M, Ethernet, Quadwire cable, QSFP-DD breakout to 2x QSFP56, MMF, Round Cable, OFNR-LSZH, 0/70 C operation, ROHS,Gen4
Coherent FCBR950QE2C03
FCBR950QE2C03
Coherent
1:
₱43,654.86
Hindi Naka-stock
Bagong Produkto
# ng Piyesa ng Mouser
508-FCBR950QE2C03
Bagong Produkto
Coherent
Fiber Optic Cable Assemblies 8X 50 Gbps, 3M, Ethernet, Quadwire cable, QSFP-DD breakout to 2x QSFP56, MMF, Round Cable, OFNR-LSZH, 0/70 C operation, ROHS,Gen4
Hindi Naka-stock
1
₱43,654.86
2
₱39,871.52
Bumili
Min.: 1
Mult.: 1
Mga detalye
QSFP-DD
QSFP56
3 m
Bulk
Fiber Optic Cable Assemblies 8X 50 Gbps, 4M, Ethernet, Quadwire cable, QSFP-DD breakout to 2x QSFP56, MMF, Round Cable, OFNR-LSZH, 0/70 C operation, ROHS,Gen5
Coherent FCBR950QE2C04
FCBR950QE2C04
Coherent
1:
₱43,824.80
Hindi Naka-stock
Bagong Produkto
# ng Piyesa ng Mouser
508-FCBR950QE2C04
Bagong Produkto
Coherent
Fiber Optic Cable Assemblies 8X 50 Gbps, 4M, Ethernet, Quadwire cable, QSFP-DD breakout to 2x QSFP56, MMF, Round Cable, OFNR-LSZH, 0/70 C operation, ROHS,Gen5
Hindi Naka-stock
1
₱43,824.80
2
₱40,026.38
Bumili
Min.: 1
Mult.: 1
Mga detalye
QSFP-DD
QSFP56
4 m
Bulk
Fiber Optic Cable Assemblies 8X 50 Gbps, 5M, Ethernet, Quadwire cable, QSFP-DD breakout to 2x QSFP56, MMF, Round Cable, OFNR-LSZH, 0/70 C operation, ROHS,Gen6
Coherent FCBR950QE2C05
FCBR950QE2C05
Coherent
1:
₱44,079.42
Hindi Naka-stock
Bagong Produkto
# ng Piyesa ng Mouser
508-FCBR950QE2C05
Bagong Produkto
Coherent
Fiber Optic Cable Assemblies 8X 50 Gbps, 5M, Ethernet, Quadwire cable, QSFP-DD breakout to 2x QSFP56, MMF, Round Cable, OFNR-LSZH, 0/70 C operation, ROHS,Gen6
Hindi Naka-stock
1
₱44,079.42
2
₱40,258.96
Bumili
Min.: 1
Mult.: 1
Mga detalye
QSFP-DD
QSFP56
5 m
Bulk
Fiber Optic Cable Assemblies 8X 50 Gbps, 6M, Ethernet, Quadwire cable, QSFP-DD breakout to 2x QSFP56, MMF, Round Cable, OFNR-LSZH, 0/70 C operation, ROHS,Gen7
Coherent FCBR950QE2C06
FCBR950QE2C06
Coherent
1:
₱44,249.36
Hindi Naka-stock
Bagong Produkto
# ng Piyesa ng Mouser
508-FCBR950QE2C06
Bagong Produkto
Coherent
Fiber Optic Cable Assemblies 8X 50 Gbps, 6M, Ethernet, Quadwire cable, QSFP-DD breakout to 2x QSFP56, MMF, Round Cable, OFNR-LSZH, 0/70 C operation, ROHS,Gen7
Hindi Naka-stock
1
₱44,249.36
2
₱40,414.40
Bumili
Min.: 1
Mult.: 1
Mga detalye
QSFP-DD
QSFP56
6 m
Bulk
Fiber Optic Cable Assemblies 8X 50 Gbps, 7M, Ethernet, Quadwire cable, QSFP-DD breakout to 2x QSFP56, MMF, Round Cable, OFNR-LSZH, 0/70 C operation, ROHS,Gen8
Coherent FCBR950QE2C07
FCBR950QE2C07
Coherent
1:
₱44,419.30
Hindi Naka-stock
Bagong Produkto
# ng Piyesa ng Mouser
508-FCBR950QE2C07
Bagong Produkto
Coherent
Fiber Optic Cable Assemblies 8X 50 Gbps, 7M, Ethernet, Quadwire cable, QSFP-DD breakout to 2x QSFP56, MMF, Round Cable, OFNR-LSZH, 0/70 C operation, ROHS,Gen8
Hindi Naka-stock
1
₱44,419.30
2
₱40,569.26
Bumili
Min.: 1
Mult.: 1
Mga detalye
QSFP-DD
QSFP56
7 m
Bulk
Fiber Optic Cable Assemblies 8X 50 Gbps, 8M, Ethernet, Quadwire cable, QSFP-DD breakout to 2x QSFP56, MMF, Round Cable, OFNR-LSZH, 0/70 C operation, ROHS,Gen9
Coherent FCBR950QE2C08
FCBR950QE2C08
Coherent
1:
₱44,589.24
Hindi Naka-stock
Bagong Produkto
# ng Piyesa ng Mouser
508-FCBR950QE2C08
Bagong Produkto
Coherent
Fiber Optic Cable Assemblies 8X 50 Gbps, 8M, Ethernet, Quadwire cable, QSFP-DD breakout to 2x QSFP56, MMF, Round Cable, OFNR-LSZH, 0/70 C operation, ROHS,Gen9
Hindi Naka-stock
1
₱44,589.24
2
₱40,724.70
Bumili
Min.: 1
Mult.: 1
Mga detalye
QSFP-DD
QSFP56
8 m
Bulk
Fiber Optic Cable Assemblies 8X 50 Gbps, 10M, Ethernet, Quadwire cable, QSFP-DD breakout to 2x QSFP56, MMF, Round Cable, OFNR-LSZH, 0/70 C operation, ROHS,Gen10
Coherent FCBR950QE2C10
FCBR950QE2C10
Coherent
1:
₱45,013.80
Hindi Naka-stock
Bagong Produkto
# ng Piyesa ng Mouser
508-FCBR950QE2C10
Bagong Produkto
Coherent
Fiber Optic Cable Assemblies 8X 50 Gbps, 10M, Ethernet, Quadwire cable, QSFP-DD breakout to 2x QSFP56, MMF, Round Cable, OFNR-LSZH, 0/70 C operation, ROHS,Gen10
Hindi Naka-stock
1
₱45,013.80
2
₱41,112.72
Bumili
Min.: 1
Mult.: 1
Mga detalye
QSFP-DD
QSFP56
10 m
Bulk
Fiber Optic Cable Assemblies 8X 50 Gbps, 15M, Ethernet, Quadwire cable, QSFP-DD breakout to 2x QSFP56, MMF, Round Cable, OFNR-LSZH, 0/70 C operation, ROHS,Gen11
Coherent FCBR950QE2C15
FCBR950QE2C15
Coherent
1:
₱45,947.60
Hindi Naka-stock
Bagong Produkto
# ng Piyesa ng Mouser
508-FCBR950QE2C15
Bagong Produkto
Coherent
Fiber Optic Cable Assemblies 8X 50 Gbps, 15M, Ethernet, Quadwire cable, QSFP-DD breakout to 2x QSFP56, MMF, Round Cable, OFNR-LSZH, 0/70 C operation, ROHS,Gen11
Hindi Naka-stock
1
₱45,947.60
2
₱41,965.90
Bumili
Min.: 1
Mult.: 1
Mga detalye
QSFP-DD
QSFP56
15 m
Bulk
Fiber Optic Cable Assemblies 8X 50 Gbps, 20M, Ethernet, Quadwire cable, QSFP-DD breakout to 2x QSFP56, MMF, Round Cable, OFNR-LSZH, 0/70 C operation, ROHS,Gen12
Coherent FCBR950QE2C20
FCBR950QE2C20
Coherent
1:
₱46,967.24
Hindi Naka-stock
Bagong Produkto
# ng Piyesa ng Mouser
508-FCBR950QE2C20
Bagong Produkto
Coherent
Fiber Optic Cable Assemblies 8X 50 Gbps, 20M, Ethernet, Quadwire cable, QSFP-DD breakout to 2x QSFP56, MMF, Round Cable, OFNR-LSZH, 0/70 C operation, ROHS,Gen12
Hindi Naka-stock
1
₱46,967.24
2
₱42,896.80
Bumili
Min.: 1
Mult.: 1
Mga detalye
QSFP-DD
QSFP56
20 m
Bulk
Fiber Optic Cable Assemblies 8X 50 Gbps, 30M, Ethernet, Quadwire cable, QSFP-DD breakout to 2x QSFP56, MMF, Round Cable, OFNR-LSZH, 0/70 C operation, ROHS,Gen13
Coherent FCBR950QE2C30
FCBR950QE2C30
Coherent
1:
₱48,920.68
Hindi Naka-stock
Bagong Produkto
# ng Piyesa ng Mouser
508-FCBR950QE2C30
Bagong Produkto
Coherent
Fiber Optic Cable Assemblies 8X 50 Gbps, 30M, Ethernet, Quadwire cable, QSFP-DD breakout to 2x QSFP56, MMF, Round Cable, OFNR-LSZH, 0/70 C operation, ROHS,Gen13
Hindi Naka-stock
1
₱48,920.68
2
₱44,680.88
Bumili
Min.: 1
Mult.: 1
Mga detalye
QSFP-DD
QSFP56
30 m
Bulk