$3.44T
Tổng vốn hoá thị trường
$57B
Tổng khối lượng
BTC 62.96%     ETH 8.94%
Tỉ lệ thống trị

Ngành: Thiết bị truyền thông Thị trường chứng khoán - Báo giá & giá

Danh sách tất cả các chứng khoán và vốn chủ sở hữu kèm giá, vốn hoá thị trường, PE và EPS
Tất cả các khối
Thiết bị truyền thông (732)
Tên Tên Giá Giá % 24h
Biểu đồ 7n
24h% & 7n
Vốn hoá TT Vốn hóa thị trường KH. LƯỢNG Khối lượng Đáy 24h Đỉnh 24h Vốn hóa thị trường Tỉ lệ P/E EPS
Tên Tên Giá Giá % 24h
Biểu đồ 7n
24h% & 7n
Vốn hoá TT Vốn hóa thị trường KH. LƯỢNG Khối lượng Đáy 24h Đỉnh 24h Vốn hóa thị trường Tỉ lệ P/E EPS
{{ item.name }}  {{ item.symbol }} {{ item.price }} {{ item.price_usd }}
{{ item.change_pct }}
{{ item.marketcap }} {{ item.marketcap_usd }} {{ item.volume }} {{ item.volume_usd }} {{ item.low }} {{ item.low_usd }} {{ item.high }} {{ item.high_usd }} {{ item.marketcap }} {{ item.marketcap_usd }} {{ item.pe }} {{ item.eps }} {{ item.eps_usd }}
Cisco Systems  CSCO $69.37
+1.75
$274.71B $17.97M $68.2 $69.47 $274.71B 28.31 $2.45
Motorola  MSI $424.84
+0.61
$70.91B $494.72K $421.16 $426.32 $70.91B 35.46 $11.98
Foxconn Industrial Internet Co., Ltd.  601138.SS $23.81 3.31 USD
+2.28
$472.85B 65.75B USD $323.61M 45M USD $23.28 3.24 USD $24.35 3.39 USD $472.85B 65.75B USD 19.51 $1.22 0.17 USD
Nokia Oyj  0K8D.IL $5.22
0
$28.93B $2 $0 $0 $28.93B 6.77 $0.77
Telefonaktiebolaget LM Ericsson (publ)  0O87.IL $82.05 8.01 USD
+0.2
$294.88B 28.78B USD $114.98K 11.22K USD $81.62 7.97 USD $82.08 8.01 USD $294.88B 28.78B USD 22.79 $3.6 0.35 USD
Telefonaktiebolaget LM Ericsson (publ)  ERIXF $8.57
0
$28.53B $2 $8.2 $8.2 $28.53B 171.40 $0.05
Telefonaktiebolaget LM Ericsson (publ)  ERIC $8.54
0
$28.52B $14.54M $8.5 $8.59 $28.52B 170.80 $0.05
Hewlett Packard Enterprise Company  HPE $21.34
+0.42
$28B $12.3M $21.15 $21.47 $28B 20.51 $1.04
Nokia  NOK $5.19
-0.19
$27.97B $9.48M $5.11 $5.19 $27.97B 19.96 $0.26
Nokia Oyj  NOKBF $5.12
-1.35
$27.89B $3.22K $5.1 $5.1 $27.89B 19.69 $0.26
Telefonaktiebolaget LM Ericsson (publ)  ERIC-B.ST $81.92 8 USD
-0.22
$273.16B 26.66B USD $1.65M 161.08K USD $81.58 7.96 USD $82.14 8.02 USD $273.16B 26.66B USD 170.66 $0.48 0.05 USD
Nokia Oyj  0HAF.IL $4.37 4.78 USD
+0.46
$24.33B 26.6B USD $3.74M 4.09M USD $4.36 4.77 USD $4.4 4.81 USD $24.33B 26.6B USD 5.98 $0.73 0.8 USD
Telefonaktiebolaget LM Ericsson (publ)  ERCB.DE $7.35 8.03 USD
+0.49
$24.23B 26.49B USD $312 341.06 USD $7.27 7.95 USD $7.35 8.03 USD $24.23B 26.49B USD 183.75 $0.04 0.04 USD
Nokia Oyj  NOKIA-SEK.ST $49.5 4.83 USD
+0.04
$267.07B 26.07B USD $71.53K 6.98K USD $49.08 4.79 USD $49.5 4.83 USD $267.07B 26.07B USD 19.95 $2.48 0.24 USD
Nokia Oyj  NOKIA.HE $4.4 4.81 USD
-0.09
$23.69B 25.9B USD $3.06M 3.34M USD $4.36 4.77 USD $4.4 4.81 USD $23.69B 25.9B USD 19.98 $0.22 0.24 USD
Nokia Oyj  NOA3.F $4.36 4.77 USD
-0.37
$23.69B 25.9B USD $4.86K 5.31K USD $4.33 4.73 USD $4.38 4.79 USD $23.69B 25.9B USD 19.83 $0.22 0.24 USD
Nokia Oyj  NOA3.DE $4.39 4.8 USD
-0.27
$23.69B 25.9B USD $76.8K 83.96K USD $4.36 4.77 USD $4.39 4.8 USD $23.69B 25.9B USD 19.94 $0.22 0.24 USD
Nokia Oyj  NOKIA.PA $4.39 4.8 USD
-0.18
$23.69B 25.9B USD $60.29K 65.91K USD $4.36 4.77 USD $4.39 4.8 USD $23.69B 25.9B USD 19.95 $0.22 0.24 USD
Ubiquiti  UI $423.97
+2.98
$25.65B $66.01K $412.05 $424.5 $25.65B 46.74 $9.07
Zhongji Innolight Co., Ltd.  300308.SZ $139.45 19.39 USD
-1.98
$154.95B 21.54B USD $41.88M 5.82M USD $138.55 19.26 USD $145.18 20.19 USD $154.95B 21.54B USD 27.07 $5.15 0.72 USD
ZTE  0763.HK $23.85 3.05 USD
-0.83
$160.6B 20.53B USD $6.3M 806.12K USD $23.4 2.99 USD $24.25 3.1 USD $160.6B 20.53B USD 12.82 $1.86 0.24 USD
ZTE Corporation  000063.SZ $32.32 4.49 USD
-1.16
$146.64B 20.39B USD $61.8M 8.59M USD $32.26 4.49 USD $32.7 4.55 USD $146.64B 20.39B USD 19.01 $1.7 0.24 USD
Eoptolink Technology Inc., Ltd.  300502.SZ $128.35 17.85 USD
-1.01
$127.54B 17.73B USD $43.91M 6.11M USD $127.33 17.7 USD $132.28 18.39 USD $127.54B 17.73B USD 31.15 $4.12 0.57 USD
Zebra  ZBRA $323.72
+1.04
$16.46B $257.49K $318.5 $326.64 $16.46B 30.56 $10.59
Credo Technology Group Holding  CRDO $93.61
+4.74
$16.07B $3.24M $90 $94.04 $16.07B 322.79 $0.29
AST SpaceMobile  ASTS $45.6
-0.24
$15.43B $6.1M $45.28 $48.32 $15.43B 0 -$1.98
Accton Technology Corporation  2345.TW $768 24.4 USD
-1.66
$429.24B 13.64B USD $3.16M 100.26K USD $766 24.34 USD $787 25.01 USD $429.24B 13.64B USD 28.98 $26.5 0.84 USD
Juniper Networks  JNPR $39.95
+0.05
$13.36B $8.49M $39.92 $39.96 $13.36B 38.04 $1.05
Shenzhen Transsion Holdings Co., Ltd.  688036.SS $74.63 10.38 USD
-2.76
$85.1B 11.83B USD $6.51M 905.33K USD $74.51 10.36 USD $76.58 10.65 USD $85.1B 11.83B USD 19.38 $3.85 0.54 USD
Ciena  CIEN $81.38
+2.34
$11.5B $1.08M $79.84 $81.84 $11.5B 111.47 $0.73
EchoStar  SATS $31.36
+6.34
$9.01B $2.71M $29.58 $31.58 $9.01B 0 -$0.75
Suzhou TFC Optical Communication Co., Ltd.  300394.SZ $75.58 10.51 USD
-3.2
$58.76B 8.17B USD $33.85M 4.71M USD $75.5 10.5 USD $79.36 11.03 USD $58.76B 8.17B USD 41.75 $1.81 0.25 USD
Lumentum  LITE $92.75
+1.65
$6.44B $1.02M $90.97 $93.68 $6.44B 0 -$6.46
Yealink Network Technology Co., Ltd.  300628.SZ $35.01 4.87 USD
-1.46
$44.34B 6.17B USD $7.7M 1.07M USD $34.86 4.85 USD $35.55 4.94 USD $44.34B 6.17B USD 16.75 $2.09 0.29 USD
AAC Technologies Holdings Inc.  AACAY $5.28
+5.39
$6.06B $100 $5.3 $5.3 $6.06B 25.14 $0.21
AAC Technologies Holdings Inc.  2018.HK $39.4 5.04 USD
-4.48
$45.24B 5.78B USD $7.31M 934.87K USD $38.7 4.95 USD $41.65 5.33 USD $45.24B 5.78B USD 23.59 $1.67 0.21 USD
Wingtech Technology Co.,Ltd  600745.SS $33.03 4.59 USD
-1.7
$41.11B 5.72B USD $10.98M 1.53M USD $33 4.59 USD $33.55 4.66 USD $41.11B 5.72B USD 0 -$2.19 -0.3 USD
Accelink Technologies Co,Ltd.  002281.SZ $47.27 6.57 USD
-1.44
$38.14B 5.3B USD $21.34M 2.97M USD $47.1 6.55 USD $48.43 6.73 USD $38.14B 5.3B USD 50.82 $0.93 0.13 USD
HENGTONG OPTIC-ELECTRIC  600487.SS $15.41 2.14 USD
-2.34
$38.01B 5.29B USD $61.39M 8.54M USD $15.38 2.14 USD $15.82 2.2 USD $38.01B 5.29B USD 13.28 $1.16 0.16 USD
Sangfor Technologies Inc.  300454.SZ $89.33 12.42 USD
-1.15
$37.69B 5.24B USD $3.76M 522.59K USD $89.06 12.38 USD $91.45 12.72 USD $37.69B 5.24B USD 85.89 $1.04 0.14 USD
Glarun Technology Co.,Ltd  600562.SS $30.23 4.2 USD
+0.63
$37.54B 5.22B USD $16.98M 2.36M USD $29.43 4.09 USD $30.87 4.29 USD $37.54B 5.22B USD 62.97 $0.48 0.07 USD
Belden  BDC $121.77
+1.13
$4.81B $116.71K $120.94 $121.83 $4.81B 23.50 $5.18
Guangzhou Haige Communications Group Incorporated Company  002465.SZ $13.08 1.82 USD
-1.43
$32.46B 4.51B USD $90.17M 12.54M USD $12.99 1.81 USD $13.25 1.84 USD $32.46B 4.51B USD 654.00 $0.02 0.002 USD
QuantumCTek Co., Ltd.  688027.SS $271.06 37.69 USD
-0.3
$27.88B 3.88B USD $646.15K 89.84K USD $269.2 37.43 USD $274 38.1 USD $27.88B 3.88B USD 0 -$0.08 -0.01 USD
ITI Limited  ITI.NS $326.65 3.95 USD
-0.17
$314.62B 3.81B USD $283.79K 3.43K USD $325 3.93 USD $331.55 4.01 USD $314.62B 3.81B USD 0 -$2.26 -0.02 USD
China Zhenhua (Group) Science & Technology Co., Ltd  000733.SZ $48.83 6.79 USD
-2.26
$27.06B 3.76B USD $12.66M 1.76M USD $48.56 6.75 USD $50.06 6.96 USD $27.06B 3.76B USD 29.23 $1.67 0.23 USD
FIBERHOME TELCOM  600498.SS $20.61 2.87 USD
-0.96
$24.41B 3.39B USD $10.88M 1.51M USD $20.57 2.86 USD $20.83 2.9 USD $24.41B 3.39B USD 32.71 $0.63 0.09 USD
Impinj  PI $115.86
+2.13
$3.36B $204.57K $112.65 $116.21 $3.36B 0 -$0.06
Quectel Wireless Solutions Co., Ltd.  603236.SS $84.58 11.76 USD
-1.31
$22.13B 3.08B USD $6.56M 912.1K USD $84.23 11.71 USD $86 11.96 USD $22.13B 3.08B USD 29.88 $2.83 0.39 USD
Yangtze Optical Fibre And Cable Joint Stock Limited Company  6869.HK $19.98 2.55 USD
+0.4
$23.75B 3.04B USD $13.5M 1.73M USD $19.02 2.43 USD $20.5 2.62 USD $23.75B 3.04B USD 20.38 $0.98 0.13 USD
Yangtze Optical Fibre And Cable Joint Stock Limited Company  601869.SS $38.15 5.3 USD
-3.15
$21.69B 3.02B USD $7.92M 1.1M USD $38.03 5.29 USD $39.47 5.49 USD $21.69B 3.02B USD 42.86 $0.89 0.12 USD
Hytera Communications Corporation Limited  002583.SZ $11.74 1.63 USD
-1.84
$21.35B 2.97B USD $43M 5.98M USD $11.72 1.63 USD $11.96 1.66 USD $21.35B 2.97B USD 0 -$1.96 -0.2 USD
T&S Communications Co.,Ltd.  300570.SZ $88.68 12.33 USD
-3.5
$20.14B 2.8B USD $17.72M 2.46M USD $88.5 12.31 USD $92.88 12.91 USD $20.14B 2.8B USD 65.20 $1.36 0.19 USD
Fibocom Wireless Inc.  300638.SZ $26.21 3.64 USD
-1.06
$20.06B 2.79B USD $22.47M 3.12M USD $26.02 3.62 USD $26.76 3.72 USD $20.06B 2.79B USD 33.60 $0.78 0.11 USD
Extreme Networks  EXTR $18.7
+1.41
$2.49B $623.56K $18.49 $18.81 $2.49B 0 -$0.41
Viavi  VIAV $10.44
+0.58
$2.33B $894.12K $10.4 $10.5 $2.33B 522.00 $0.02
TianJin 712 Communication & Broadcasting Co., Ltd.  603712.SS $21.31 2.96 USD
-1.62
$16.45B 2.29B USD $17.3M 2.41M USD $20.98 2.92 USD $21.58 3 USD $16.45B 2.29B USD 0 -$0.41 -0.05 USD
Cetc Potevio Science&Technology Co.,Ltd.  002544.SZ $22.91 3.19 USD
-0.39
$15.59B 2.17B USD $7.8M 1.09M USD $22.75 3.16 USD $23.27 3.24 USD $15.59B 2.17B USD 0 -$0.03 -0.004 USD
Sichuan Jiuzhou Electronic Co., Ltd.  000801.SZ $15.06 2.09 USD
-1.25
$15.4B 2.14B USD $15.04M 2.09M USD $14.94 2.08 USD $15.24 2.12 USD $15.4B 2.14B USD 83.66 $0.18 0.03 USD
Viasat  VSAT $16.28
+7.03
$2.12B $2.54M $15.43 $16.53 $2.12B 0 -$4.48
Eutelsat  ETCMY $1.09
-1.8
$2.07B $12.02K $1.05 $1.09 $2.07B 0 -$0.61
Jushri Technologies, INC.  300762.SZ $22.07 3.07 USD
-2.86
$13.86B 1.93B USD $27.8M 3.87M USD $22.01 3.06 USD $22.72 3.16 USD $13.86B 1.93B USD 0 -$0.16 -0.02 USD
Eutelsat Communications S.A.  EUTLF $4.02
-3.13
$1.92B $2.63K $4.12 $4.12 $1.92B 0 -$2.42
VTECH HOLDINGS  0303.HK $58.4 7.47 USD
+0.09
$14.76B 1.89B USD $409.68K 52.38K USD $58 7.42 USD $58.5 7.48 USD $14.76B 1.89B USD 12.01 $4.86 0.62 USD
CommScope Holding Company  COMM $8.67
+4.33
$1.88B $4.75M $8.25 $8.67 $1.88B 0 -$0.18
Huber+Suhner AG  HUBN.SW $86.4 98.3 USD
-0.69
$1.59B 1.81B USD $17.32K 19.71K USD $85.5 97.28 USD $86.6 98.53 USD $1.59B 1.81B USD 22.32 $3.87 4.4 USD
Fujian Star-net Communication Co., LTD.  002396.SZ $22.1 3.07 USD
-0.27
$13.01B 1.81B USD $9.38M 1.3M USD $21.99 3.06 USD $22.43 3.12 USD $13.01B 1.81B USD 29.46 $0.75 0.1 USD
TKH Group N.V.  0NO1.IL $38.18 41.74 USD
-2.48
$1.65B 1.81B USD $11.79K 12.88K USD $37.94 41.47 USD $38.64 42.24 USD $1.65B 1.81B USD 9.47 $4.03 4.41 USD
Skyworth Digital Co., Ltd.  000810.SZ $11.36 1.58 USD
-1.9
$12.97B 1.8B USD $12.4M 1.72M USD $11.34 1.58 USD $11.58 1.61 USD $12.97B 1.8B USD 87.38 $0.13 0.02 USD
Addsino Co., Ltd.  000547.SZ $8.07 1.12 USD
-1.1
$12.9B 1.79B USD $32.83M 4.57M USD $8.02 1.12 USD $8.15 1.13 USD $12.9B 1.79B USD 0 -$1.05 -0.1 USD
Eutelsat Communications S.A.  E3B.F $3.45 3.77 USD
-0.86
$1.64B 1.79B USD $7K 7.65K USD $3.44 3.75 USD $3.55 3.88 USD $1.64B 1.79B USD 0 -$2.05 -2.2 USD
Eutelsat Communications S.A.  ETL.PA $3.44 3.76 USD
+0.44
$1.63B 1.79B USD $998.22K 1.09M USD $3.39 3.71 USD $3.56 3.89 USD $1.63B 1.79B USD 0 -$2.05 -2.2 USD
WNC Corporation  6285.TW $116 3.69 USD
-2.11
$56.16B 1.78B USD $6.15M 195.56K USD $115.5 3.67 USD $120.5 3.83 USD $56.16B 1.78B USD 15.59 $7.44 0.24 USD
ETERN  600105.SS $8.73 1.21 USD
+0.34
$12.76B 1.77B USD $168.61M 23.44M USD $8.61 1.2 USD $8.95 1.24 USD $12.76B 1.77B USD 39.68 $0.22 0.03 USD
CORPRO TECH  300101.SZ $22.34 3.11 USD
+0.09
$12.69B 1.76B USD $16.6M 2.31M USD $21.83 3.04 USD $22.76 3.16 USD $12.69B 1.76B USD 372.33 $0.06 0.008 USD
Invisio AB (publ)  IVSO.ST $375.5 36.65 USD
+1.21
$17.34B 1.69B USD $39.23K 3.83K USD $368.5 35.97 USD $377 36.8 USD $17.34B 1.69B USD 58.12 $6.46 0.63 USD
TKH Group N.V.  TWEKA.AS $38.08 41.63 USD
-1.55
$1.52B 1.66B USD $69.04K 75.47K USD $38 41.54 USD $38.52 42.11 USD $1.52B 1.66B USD 15.23 $2.5 2.73 USD
CIG Shanghai Co., Ltd.  603083.SS $43.96 6.11 USD
-3.81
$11.78B 1.64B USD $27.58M 3.83M USD $43.67 6.07 USD $46.3 6.44 USD $11.78B 1.64B USD 68.68 $0.64 0.09 USD
MEIG SMART  002881.SZ $44.66 6.21 USD
-1.41
$11.69B 1.63B USD $5.41M 751.84K USD $44.38 6.17 USD $45.48 6.32 USD $11.69B 1.63B USD 65.67 $0.68 0.09 USD
Applied Optoelectronics  AAOI $28.66
+7.38
$1.61B $6.96M $26.42 $31.02 $1.61B 0 -$4.08
Knowles  KN $18.23
+0.72
$1.59B $260.05K $18.08 $18.31 $1.59B 67.51 $0.27
Eastern Communications Co.,Ltd.  900941.SS $0.3699
-0.54
$1.55B $249.8K $0.3699 $0.38 $1.55B 0 $0
Advanced Fiber Resources (Zhuhai), Ltd.  300620.SZ $44.53 6.19 USD
-2
$11.1B 1.54B USD $6.53M 908.38K USD $44.44 6.18 USD $45.45 6.32 USD $11.1B 1.54B USD 159.03 $0.28 0.04 USD
Eastern Communications Co.,Ltd.  600776.SS $10.75 1.49 USD
-0.92
$11.07B 1.54B USD $6.96M 967.87K USD $10.73 1.49 USD $10.9 1.52 USD $11.07B 1.54B USD 0 -$0.03 -0.004 USD
DATANG TELECOM  600198.SS $8.34 1.16 USD
-1.18
$10.87B 1.51B USD $11.64M 1.62M USD $8.31 1.16 USD $8.44 1.17 USD $10.87B 1.51B USD 417.00 $0.02 0.002 USD
Tejas Networks Limited  TEJASNET.NS $705 8.53 USD
-0.23
$123.78B 1.5B USD $467.03K 5.65K USD $701.8 8.49 USD $710.5 8.6 USD $123.78B 1.5B USD 27.75 $25.4 0.31 USD
HFCL Limited  HFCL.BO $84.62 1.02 USD
+0.14
$122.03B 1.48B USD $270.22K 3.27K USD $83.86 1.01 USD $85.72 1.04 USD $122.03B 1.48B USD 68.79 $1.23 0.01 USD
HFCL Limited  HFCL.NS $84.48 1.02 USD
-0.05
$121.86B 1.47B USD $6.23M 75.4K USD $83.85 1.01 USD $85.7 1.04 USD $121.86B 1.47B USD 68.68 $1.23 0.01 USD
Arcadyan Technology Corporation  3596.TW $199 6.32 USD
-3.86
$43.85B 1.39B USD $2.88M 91.48K USD $196.5 6.24 USD $208 6.61 USD $43.85B 1.39B USD 17.48 $11.38 0.36 USD
Wuhan Fingu Electronic Technology Co., LTD.  002194.SZ $14.3 1.99 USD
-2.92
$9.77B 1.36B USD $38.83M 5.4M USD $14.27 1.98 USD $14.87 2.07 USD $9.77B 1.36B USD 158.88 $0.09 0.01 USD
Digi  DGII $35.94
+1.07
$1.33B $97.94K $35.56 $36.14 $1.33B 31.80 $1.13
Telesat Corporation  TSAT.TO $34.97 25.95 USD
-0.82
$1.78B 1.32B USD $731 542.45 USD $34.7 25.75 USD $35.48 26.33 USD $1.78B 1.32B USD 0 -$6.29 -4.6 USD
Telesat  TSAT $26.1
+1.64
$1.31B $109.05K $25.39 $26.13 $1.31B 0 -$4.61
TATFOOK TECH  300134.SZ $12.07 1.68 USD
-1.55
$9.26B 1.29B USD $14.38M 2M USD $12.05 1.68 USD $12.4 1.72 USD $9.26B 1.29B USD 0 -$0.61 -0.08 USD
Astra Microwave Products Limited  ASTRAMICRO.NS $1,076.1 13.02 USD
+1.68
$102.17B 1.24B USD $698.44K 8.45K USD $1,061.6 12.84 USD $1,109 13.42 USD $102.17B 1.24B USD 66.67 $16.14 0.2 USD
Shenzhen Gongjin Electronics Co., Ltd.  603118.SS $11.14 1.55 USD
-1.59
$8.77B 1.22B USD $32.68M 4.54M USD $11.1 1.54 USD $11.62 1.62 USD $8.77B 1.22B USD 0 -$0.08 -0.01 USD
GOSUNCN  300098.SZ $5.02 0.7 USD
-1.38
$8.72B 1.21B USD $31.09M 4.32M USD $5 0.7 USD $5.1 0.71 USD $8.72B 1.21B USD 0 -$0.15 -0.02 USD
Shenzhen Coship Electronics Co., Ltd.  002052.SZ $11.29 1.57 USD
+0.71
$8.42B 1.17B USD $20.49M 2.85M USD $11.04 1.54 USD $11.43 1.59 USD $8.42B 1.17B USD 43.42 $0.26 0.04 USD
Adtran Networks SE  ADV.DE $20.4 22.3 USD
0
$1.06B 1.16B USD $11.22K 12.27K USD $20.3 22.19 USD $20.5 22.41 USD $1.06B 1.16B USD 0 -$1.2 -1.3 USD
YCIG  600345.SS $25.05 3.48 USD
-2.19
$8.26B 1.15B USD $6.5M 904.16K USD $25.03 3.48 USD $25.6 3.56 USD $8.26B 1.15B USD 44.73 $0.56 0.08 USD
Không có cổ phiếu ưa thích

Bạn chưa có cổ phiếu ưa thích nào, hãy thêm nó vào mục ưa thích để thấy nó tại đây