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  • Shop All Keystron, LLC Products At NeweggBusiness

  • Keystron, LLC is established in June, 2007. We started our business by manufacturing memory modules for PCs, laptops, printers and routers and selling the products online. Over the years we have expanded our manufacture process and product offers to include optical transceivers for network connectivity. We resell many named brand products and also offer our own brand memory and optical transceivers at a much more affordable prices. See More
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NEW Cisco Compatible SFP-10G-LR 10GBASE-LR, SFP+ SMF 1310nm 10km LC DOM
NEW Cisco Compatible SFP-10G-LR 10GBASE-LR, SFP+ SMF 1310nm 10km LC DOM
  • Device Type: Transceiver
  • Model #: PTNO-19C-0644
  • Item #: 9SIV9XCGZ38925
  • Return Policy: View Return Policy
$16.37
TP-Link Compatible TXM431-SR 10GBASE-SR 300m 850nm SFP+ Transceiver
TP-Link Compatible TXM431-SR 10GBASE-SR 300m 850nm SFP+ Transceiver
  • Device Type: Transceiver
  • Model #: PTNO-19C-0163
  • Item #: 9SIV9XCGZ38748
  • Return Policy: View Return Policy
$20.68
HP J8177C Compatible 1000BASE-T SFP Copper RJ-45 100m Transceiver
HP J8177C Compatible 1000BASE-T SFP Copper RJ-45 100m Transceiver
  • Device Type: Transceiver
  • Model #: PTNO-19C-0574
  • Item #: 9SIV9XCGZ38875
  • Return Policy: View Return Policy
$18.50
HIRSCHMANN M-FAST SFP-SM/LC Compatible 943 866-001 100BASE-SM SMF Transceiver
HIRSCHMANN M-FAST SFP-SM/LC Compatible 943 866-001 100BASE-SM SMF Transceiver
  • Device Type: Transceiver
  • Model #: PTNO-19C-0108
  • Item #: 9SIV9XCGZ38789
  • Return Policy: View Return Policy
$65.00
Linksys Compatible MGBLX1 - 1000BASE-LX SMF 1310nm 10KM SFP Transceiver
Linksys Compatible MGBLX1 - 1000BASE-LX SMF 1310nm 10KM SFP Transceiver
  • Device Type: Transceiver
  • Model #: PTNO-19C-0036
  • Item #: 9SIV9XCGZ38770
  • Return Policy: View Return Policy
$11.25
Cisco GLC-T Compatible 1000BASE-T SFP Copper RJ-45 100m Transceiver
Cisco GLC-T Compatible 1000BASE-T SFP Copper RJ-45 100m Transceiver
  • Device Type: Transceiver
  • Model #: PTNO-19C-0326
  • Item #: 9SIV9XCGZ38755
  • Return Policy: View Return Policy
$19.50
DELL Intel Compatible E10GSFPSR 10GB SR FC SFP+ 850nm FTLX8574D3BCV-IT XYD50
DELL Intel Compatible E10GSFPSR 10GB SR FC SFP+ 850nm FTLX8574D3BCV-IT XYD50
  • Device Type: Transceiver
  • Model #: PTNO-19C-0086
  • Item #: 9SIV9XCGZ38756
  • Return Policy: View Return Policy
$11.95
HP J4858C Compatible 1000BASE-SX SFP 850nm 550m DOM Transceiver HPE
HP J4858C Compatible 1000BASE-SX SFP 850nm 550m DOM Transceiver HPE
  • Device Type: Transceiver
  • Model #: PTNO-19C-0568
  • Item #: 9SIV9XCGZ38898
  • Return Policy: View Return Policy
$10.00
Mikrotik S-85DLC05D Compatible 1000BASE-SX SFP Transceiver 550m Multi Mode
Mikrotik S-85DLC05D Compatible 1000BASE-SX SFP Transceiver 550m Multi Mode
  • Device Type: Transceiver
  • Model #: PTNO-19C-0528
  • Item #: 9SIV9XCGZ38787
  • Return Policy: View Return Policy
$12.50
New AGM731F Netgear Compatible Transceivers with life-time warranty 1000Base-SX
New AGM731F Netgear Compatible Transceivers with life-time warranty 1000Base-SX
  • Device Type: Transceiver
  • Model #: PTNO-19C-0537
  • Item #: 9SIV9XCGZ38871
  • Return Policy: View Return Policy
$10.00
Intel E10GSFPLR Compatible 1000BASE-LX 10GBASE-LR SFP+ 1310nm 10km Transceiver
Intel E10GSFPLR Compatible 1000BASE-LX 10GBASE-LR SFP+ 1310nm 10km Transceiver
  • Device Type: Transceiver
  • Model #: PTNO-19C-0043
  • Item #: 9SIV9XCGZ38782
  • Return Policy: View Return Policy
$19.96
HP Compatible J9151A HP X132 10GBASE-LR SFP+ 1310nm SMF 10km Transceiver
HP Compatible J9151A HP X132 10GBASE-LR SFP+ 1310nm SMF 10km Transceiver
  • Device Type: Transceiver
  • Model #: PTNO-19C-0733
  • Item #: 9SIV9XCGZ38941
  • Return Policy: View Return Policy
$38.95
D-Link DEM-432XT-DD D-Link 10GBASE-LR SFP+ Module for 1310nm SMF TRANSCEIVER
D-Link DEM-432XT-DD D-Link 10GBASE-LR SFP+ Module for 1310nm SMF TRANSCEIVER
  • Device Type: Transceiver
  • Model #: PTNO-19C-0613
  • Item #: 9SIV9XCGZ38891
  • Return Policy: View Return Policy
$19.52
Finisar Compatible FTLX8574D3BCL SFP+ SR/SW 10Gb/s 850nm Multimode Transceiver
Finisar Compatible FTLX8574D3BCL SFP+ SR/SW 10Gb/s 850nm Multimode Transceiver
  • Device Type: Transceiver
  • Model #: PTNO-19C-0173
  • Item #: 9SIV9XCGZ38766
  • Return Policy: View Return Policy
$15.00
UF-RJ45-1G Ubiquiti Compatible 1000Base-T RJ45 Copper SFP TRANSCEIVER
UF-RJ45-1G Ubiquiti Compatible 1000Base-T RJ45 Copper SFP TRANSCEIVER
  • Device Type: Transceiver
  • Model #: PTNO-19C-0523
  • Item #: 9SIV9XCGZ38882
  • Return Policy: View Return Policy
$23.94
Cisco Compatible SFP-10G-LR-S 1310nm 10km Catalyst Series
Cisco Compatible SFP-10G-LR-S 1310nm 10km Catalyst Series
  • Device Type: Transceiver
  • Model #: PTNO-19C-0627
  • Item #: 9SIV9XCGZ38908
  • Return Policy: View Return Policy
$19.50
D-Link Compatible DEM-431XT-DD 10GBASE-SR SFP+ 850nm 300m DOM Transceiver
D-Link Compatible DEM-431XT-DD 10GBASE-SR SFP+ 850nm 300m DOM Transceiver
  • Device Type: Transceiver
  • Model #: PTNO-19C-0607
  • Item #: 9SIV9XCGZ38879
  • Return Policy: View Return Policy
$14.00
Dell Compatible 407-BBZM 49TNY Transceiver SFP+ 10 GbE SR 850nm MMF 300 m reach
Dell Compatible 407-BBZM 49TNY Transceiver SFP+ 10 GbE SR 850nm MMF 300 m reach
  • Device Type: Transceiver
  • Model #: PTNO-19C-0535
  • Item #: 9SIV9XCGZ38796
  • Return Policy: View Return Policy
$9.95
HPE Compatible JD118B 1000BASE-SX SFP Transceiver-850nm-550m DOM
HPE Compatible JD118B 1000BASE-SX SFP Transceiver-850nm-550m DOM
  • Device Type: Transceiver
  • Model #: PTNO-19C-0572
  • Item #: 9SIV9XCGZ38936
  • Return Policy: View Return Policy
$9.95
HIRSCHMANN Compatible 943 014-001 M-SFP-SX/LC 1000BASE-SX 850nm 550m MMF
HIRSCHMANN Compatible 943 014-001 M-SFP-SX/LC 1000BASE-SX 850nm 550m MMF
  • Device Type: Transceiver
  • Model #: PTNO-19C-0103
  • Item #: 9SIV9XCGZ38772
  • Return Policy: View Return Policy
$7.25
HPE Aruba Compatible JD092B SFP+SR LC 10GE 850nm 300m X130
HPE Aruba Compatible JD092B SFP+SR LC 10GE 850nm 300m X130
  • Device Type: Transceiver
  • Model #: PTNO-19C-0593
  • Item #: 9SIV9XCGZ38913
  • Return Policy: View Return Policy
$11.50
Ubiquiti Networks Compatible UF-MM-1G SFP Multi-Mode Fiber Module (2-Pack)
Ubiquiti Networks Compatible UF-MM-1G SFP Multi-Mode Fiber Module (2-Pack)
  • Device Type: Transceiver
  • Model #: PTNO-19C-0176
  • Item #: 9SIV9XCGZ38769
  • Return Policy: View Return Policy
$19.95
Cisco Meraki MA-SFP-1GB-SX Compatible 1000BASE-SX SFP 850nm 550m DOM
Cisco Meraki MA-SFP-1GB-SX Compatible 1000BASE-SX SFP 850nm 550m DOM
  • Device Type: Transceiver
  • Model #: PTNO-19C-0048
  • Item #: 9SIV9XCGZ38786
  • Return Policy: View Return Policy
$13.50
Alcatel-Lucent 3HE00062CB Compatible 10/100/1000BASE-T SFP Copper RJ-45 100m-855
Alcatel-Lucent 3HE00062CB Compatible 10/100/1000BASE-T SFP Copper RJ-45 100m-855
  • Device Type: Transceiver
  • Model #: PTNO-19C-0603
  • Item #: 9SIV9XCGZ38870
  • Return Policy: View Return Policy
$15.95
Supermicro Compatible AOC-E10GSFPSR AOC-TSR-FS SFP+ 850nm 10G/1G Transceivers
Supermicro Compatible AOC-E10GSFPSR AOC-TSR-FS SFP+ 850nm 10G/1G Transceivers
  • Device Type: Transceiver
  • Model #: PTNO-19C-0159
  • Item #: 9SIV9XCGZ38784
  • Return Policy: View Return Policy
$16.95
JUNIPER COMPATIBLE SFP-GE40KM 740-017726 1GE SMF SRX-SFP-1GE-LX40 40KM
JUNIPER COMPATIBLE SFP-GE40KM 740-017726 1GE SMF SRX-SFP-1GE-LX40 40KM
  • Device Type: Transceiver
  • Model #: PTNO-19C-0490
  • Item #: 9SIV9XCGZ38763
  • Return Policy: View Return Policy
$45.00
New Cisco GLC-LH-SMD 1.25G 1000Base-LH/LX 1310nm DDM SFP Compatible Module
New Cisco GLC-LH-SMD 1.25G 1000Base-LH/LX 1310nm DDM SFP Compatible Module
  • Device Type: Transceiver
  • Model #: PTNO-19C-0581
  • Item #: 9SIV9XCGZ38897
  • Return Policy: View Return Policy
$9.90
DEM-432XT D-Link Compatible SFP+ 10GBASE-LR 1310nm 10km Transceiver
DEM-432XT D-Link Compatible SFP+ 10GBASE-LR 1310nm 10km Transceiver
  • Device Type: Transceiver
  • Model #: PTNO-19C-0615
  • Item #: 9SIV9XCGZ38895
  • Return Policy: View Return Policy
$23.50
Palo Alto Networks Compatible PAN-SFP-CG - 1000BASE-T SFP Transceiver PA-7000
Palo Alto Networks Compatible PAN-SFP-CG - 1000BASE-T SFP Transceiver PA-7000
  • Device Type: Transceiver
  • Model #: PTNO-19C-0010
  • Item #: 9SIV9XCGZ38749
  • Return Policy: View Return Policy
$17.00
Intel E10GSFPSR Compatible 1000BASE-SX 10GBASE-SR SFP+ 850nm 300m Transceiver
Intel E10GSFPSR Compatible 1000BASE-SX 10GBASE-SR SFP+ 850nm 300m Transceiver
  • Device Type: Transceiver
  • Model #: PTNO-19C-0042
  • Item #: 9SIV9XCGZ38778
  • Return Policy: View Return Policy
$8.95
Arista Compatible SFP-10G-LR XVR-00003-02 SFP+LR 1310nm 10km SMF.
Arista Compatible SFP-10G-LR XVR-00003-02 SFP+LR 1310nm 10km SMF.
  • Device Type: Transceiver
  • Model #: PTNO-19C-0133
  • Item #: 9SIV9XCGZ38762
  • Return Policy: View Return Policy
$23.00
HIRSCHMANN M-SFP-LX/LC Compatible 943 015-001 1000BASE-LX 20km SMF Transceiver
HIRSCHMANN M-SFP-LX/LC Compatible 943 015-001 1000BASE-LX 20km SMF Transceiver
  • Device Type: Transceiver
  • Model #: PTNO-19C-0105
  • Item #: 9SIV9XCGZ38776
  • Return Policy: View Return Policy
$7.54
HP JD089B Compatible 1000BASE-T SFP Copper RJ-45 100m Transceiver HPE
HP JD089B Compatible 1000BASE-T SFP Copper RJ-45 100m Transceiver HPE
  • Device Type: Transceiver
  • Model #: PTNO-19C-0737
  • Item #: 9SIV9XCGZ38942
  • Return Policy: View Return Policy
$15.00
Arista Network Compatible SFP-1G-LX XVR-00006-02 1GE 1310nm SMF 10km.
Arista Network Compatible SFP-1G-LX XVR-00006-02 1GE 1310nm SMF 10km.
  • Device Type: Transceiver
  • Model #: PTNO-19C-0137
  • Item #: 9SIV9XCGZ38773
  • Return Policy: View Return Policy
$31.96
Ubiquiti UF-MM-10G compatible SFP+SR 850nm 10GE MMF Edgemax EdgeRouter PRO
Ubiquiti UF-MM-10G compatible SFP+SR 850nm 10GE MMF Edgemax EdgeRouter PRO
  • Device Type: Transceiver
  • Model #: PTNO-19O-0753
  • Item #: 9SIV9XCGZ38971
  • Return Policy: View Return Policy
$16.98
Cisco GLC-ZX-SM Compatible 1000BASE-ZX SFP 1550nm 70km
Cisco GLC-ZX-SM Compatible 1000BASE-ZX SFP 1550nm 70km
  • Device Type: Transceiver
  • Model #: PTNO-19C-0051
  • Item #: 9SIV9XCGZ38747
  • Return Policy: View Return Policy
$34.95
ARISTA Compatible SFP-10G-LRL - 10GBASE-LRL SFP+ Optics Module 1310nm 1km SMF
ARISTA Compatible SFP-10G-LRL - 10GBASE-LRL SFP+ Optics Module 1310nm 1km SMF
  • Device Type: Transceiver
  • Model #: PTNO-19C-0134
  • Item #: 9SIV9XCGZ38765
  • Return Policy: View Return Policy
$19.00
F5 Networks Compatible 10G F5-UPG-SFP+LR-R SFP+ SMF 1310nm 10km OPT-0017-00
F5 Networks Compatible 10G F5-UPG-SFP+LR-R SFP+ SMF 1310nm 10km OPT-0017-00
  • Device Type: Transceiver
  • Model #: PTNO-19C-0131
  • Item #: 9SIV9XCGZ38754
  • Return Policy: View Return Policy
$32.00
HIRSCHMANN M-SFP-LX+/LC Compatible 942 023-001 1000BASE-LX 40km SM Transceiver
HIRSCHMANN M-SFP-LX+/LC Compatible 942 023-001 1000BASE-LX 40km SM Transceiver
  • Device Type: Transceiver
  • Model #: PTNO-19C-0106
  • Item #: 9SIV9XCGZ38780
  • Return Policy: View Return Policy
$21.50
AXM762 Netgear Compatible 10GBASE-LR SFP+ 10G SMF 1310nm 10km Transceiver
AXM762 Netgear Compatible 10GBASE-LR SFP+ 10G SMF 1310nm 10km Transceiver
  • Device Type: Transceiver
  • Model #: PTNO-19C-0132
  • Item #: 9SIV9XCGZ38758
  • Return Policy: View Return Policy
$20.88
HP Compatible C8R24A 720999-001 717874-001 656435-001 MSA2040 16Gb SW SFP 4PK
HP Compatible C8R24A 720999-001 717874-001 656435-001 MSA2040 16Gb SW SFP 4PK
  • Device Type: Transceiver
  • Model #: PTNO-19C-0659
  • Item #: 9SIV9XCGZ38881
  • Return Policy: View Return Policy
$162.00
HIRSCHMANN M-SFP-LH/LC Compatible 943 042-001 1000BASE-LH 80km SMF Transceiver
HIRSCHMANN M-SFP-LH/LC Compatible 943 042-001 1000BASE-LH 80km SMF Transceiver
  • Device Type: Transceiver
  • Model #: PTNO-19C-0107
  • Item #: 9SIV9XCGZ38785
  • Return Policy: View Return Policy
$199.95
S-31DLC20D MikroTik Compatible 1000Base-LX 20KM SFP Transceiver module 1310nm
S-31DLC20D MikroTik Compatible 1000Base-LX 20KM SFP Transceiver module 1310nm
  • Device Type: Transceiver
  • Model #: PTNO-19C-0527
  • Item #: 9SIV9XCGZ38783
  • Return Policy: View Return Policy
$12.50
J4858D 1G SFP LC SX 500m MMF XCVR HP and Aruba Compatible Lifetime Warranty
J4858D 1G SFP LC SX 500m MMF XCVR HP and Aruba Compatible Lifetime Warranty
  • Device Type: Transceiver
  • Model #: PTNO-19C-0569
  • Item #: 9SIV9XCGZ38910
  • Return Policy: View Return Policy
$10.50
HP Compatible C8R25B MSA 10Gb Short Range iSCSI SFP+ 4-Pack Transceiver
HP Compatible C8R25B MSA 10Gb Short Range iSCSI SFP+ 4-Pack Transceiver
  • Device Type: Transceiver
  • Model #: PTNO-19C-0664
  • Item #: 9SIV9XCGZ38885
  • Return Policy: View Return Policy
$60.00
HPE Compatible C8R24B MSA 16Gb Short Wave Fibre Channel SFP+ 4-pack Transceiver
HPE Compatible C8R24B MSA 16Gb Short Wave Fibre Channel SFP+ 4-pack Transceiver
  • Device Type: Transceiver
  • Model #: PTNO-19C-0661
  • Item #: 9SIV9XCGZ38884
  • Return Policy: View Return Policy
$179.00
For Ubiquiti UF-SM-1G Compatible 1000BASE-LX SFP 1310nm 10km Transceiver Module
For Ubiquiti UF-SM-1G Compatible 1000BASE-LX SFP 1310nm 10km Transceiver Module
  • Device Type: Transceiver
  • Model #: PTNO-19C-0467
  • Item #: 9SIV9XCGZ38759
  • Return Policy: View Return Policy
$14.95
HPE Aruba Compatible J8177D 1G SFP RJ45 T 100m Cat5e Transceiver - 1000Base-T
HPE Aruba Compatible J8177D 1G SFP RJ45 T 100m Cat5e Transceiver - 1000Base-T
  • Device Type: Transceiver
  • Model #: PTNO-19C-0576
  • Item #: 9SIV9XCGZ38880
  • Return Policy: View Return Policy
$15.50
Cisco Compatible SFP-10G-SR-S 850nm Transceiver 400m on OM4 MMF
Cisco Compatible SFP-10G-SR-S 850nm Transceiver 400m on OM4 MMF
  • Device Type: Transceiver
  • Model #: PTNO-19C-0626
  • Item #: 9SIV9XCGZ38903
  • Return Policy: View Return Policy
$16.50
Supermicro Compatible AOC-E10GSFPLR SFP+ transceiver module
Supermicro Compatible AOC-E10GSFPLR SFP+ transceiver module
  • Device Type: Transceiver
  • Model #: PTNO-19C-0160
  • Item #: 9SIV9XCGZ38788
  • Return Policy: View Return Policy
$18.00
MGBSX1 Cisco Linksys Compatible 1000BASE-SX 850nm 550m SFP Transceiver
MGBSX1 Cisco Linksys Compatible 1000BASE-SX 850nm 550m SFP Transceiver
  • Device Type: Transceiver
  • Model #: PTNO-19C-0035
  • Item #: 9SIV9XCGZ38764
  • Return Policy: View Return Policy
$10.50
Mellanox Compatible MC3208011-LX 1000BASE-LX SFP 1310nm 10km/20km Transceiver
Mellanox Compatible MC3208011-LX 1000BASE-LX SFP 1310nm 10km/20km Transceiver
  • Device Type: Transceiver
  • Model #: PTNO-19C-0504
  • Item #: 9SIV9XCGZ38775
  • Return Policy: View Return Policy
$29.00
HPE J4859C 1000Base-LX 1310nm 10km HP Compatible LIFETIME WARRANTY
HPE J4859C 1000Base-LX 1310nm 10km HP Compatible LIFETIME WARRANTY
  • Device Type: Transceiver
  • Model #: PTNO-19C-0570
  • Item #: 9SIV9XCGZ38919
  • Return Policy: View Return Policy
$12.95
Nortel Avaya AA1403015-E6 Compatible 10GBASE-SR 10G SFP+ 850nm MMF Transceiver
Nortel Avaya AA1403015-E6 Compatible 10GBASE-SR 10G SFP+ 850nm MMF Transceiver
  • Device Type: Transceiver
  • Model #: PTNO-19C-0530
  • Item #: 9SIV9XCGZ38795
  • Return Policy: View Return Policy
$10.95
Compatible Fortinet FG-TRAN-SFP+SR FN SFP-10G-SR FTLX8574D3BCL 850nm MMF 10GBE
Compatible Fortinet FG-TRAN-SFP+SR FN SFP-10G-SR FTLX8574D3BCL 850nm MMF 10GBE
  • Device Type: Transceiver
  • Model #: PTNO-19C-0498
  • Item #: 9SIV9XCGZ38767
  • Return Policy: View Return Policy
$10.00
Mikrotik S+85DLC03D Compatible 10GBASE-SR SFP+ 850nm 300m DOM Transceiver
Mikrotik S+85DLC03D Compatible 10GBASE-SR SFP+ 850nm 300m DOM Transceiver
  • Device Type: Transceiver
  • Model #: PTNO-19C-0556
  • Item #: 9SIV9XCGZ38886
  • Return Policy: View Return Policy
$12.48
TP-Link Compatible 1000BASE-LX TL-SM311LS SFP 1310nm 10km DOM Transceiver
TP-Link Compatible 1000BASE-LX TL-SM311LS SFP 1310nm 10km DOM Transceiver
  • Device Type: Transceiver
  • Model #: PTNO-19C-0157
  • Item #: 9SIV9XCGZ38781
  • Return Policy: View Return Policy
$16.90
Ubiquiti Compatible UF-SM-10G SFP-10G-LR SFP+LR 1310nm 10km SMF US-16-XG
Ubiquiti Compatible UF-SM-10G SFP-10G-LR SFP+LR 1310nm 10km SMF US-16-XG
  • Device Type: Transceiver
  • Model #: PTNO-19O-0754
  • Item #: 9SIV9XCGZ38970
  • Return Policy: View Return Policy
$25.50
Cisco Meraki Compatible SFP 10G LR SM 10km MA-SFP-10GB-LR
Cisco Meraki Compatible SFP 10G LR SM 10km MA-SFP-10GB-LR
  • Device Type: Transceiver
  • Model #: PTNO-19C-0646
  • Item #: 9SIV9XCGZ38873
  • Return Policy: View Return Policy
$26.00
Cisco Compatible GLC-SX-MM 850nm 550m Gigabit Multimode Fiber Module New
Cisco Compatible GLC-SX-MM 850nm 550m Gigabit Multimode Fiber Module New
  • Device Type: Transceiver
  • Model #: PTNO-19C-0577
  • Item #: 9SIV9XCGZ38883
  • Return Policy: View Return Policy
$13.85
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