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  • 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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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 #: 9SIAUSYGAU1331
  • Return Policy: View Return Policy
$9.95
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  • $9.15 - $9.95
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 #: 9SIAUSYGAU1639
  • Return Policy: View Return Policy
$12.17
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  • $11.20 - $12.17
NEW Cisco Compatible SFP-10G-SR 10Gb SFP+ Transceiver 850nm LIFETIME WARRANTY
NEW Cisco Compatible SFP-10G-SR 10Gb SFP+ Transceiver 850nm LIFETIME WARRANTY
  • Device Type: Transceiver
  • Model #: PTNO-19C-0628
  • Item #: 9SIAUSYGAU1661
  • Return Policy: View Return Policy
$9.50
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  • $8.74 - $9.50
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 #: 9SIAUSYGAU1333
  • Return Policy: View Return Policy
$68.25
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  • $62.79 - $68.25
TP-Link Compatible 1000BASE-SX TL-SM311LM SFP MiniGBIC Module Multi-mode Fiber
TP-Link Compatible 1000BASE-SX TL-SM311LM SFP MiniGBIC Module Multi-mode Fiber
  • Device Type: Transceiver
  • Model #: PTNO-19C-0156
  • Item #: 9SIAUSYGAU1326
  • Return Policy: View Return Policy
$17.90
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  • $16.47 - $17.90
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 #: 9SIAUSYGAU1925
  • Return Policy: View Return Policy
$24.96
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  • $22.96 - $24.96
SFP-1G-T Arista Compatible SFP 1000base-T Transceiver SFP-RJ45 XVR-00007-02
SFP-1G-T Arista Compatible SFP 1000base-T Transceiver SFP-RJ45 XVR-00007-02
  • Device Type: Transceiver
  • Model #: PTNO-19C-0711
  • Item #: 9SIAUSYGAU1659
  • Return Policy: View Return Policy
$18.90
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  • $17.39 - $18.90
Cisco Meraki Compatible MA-SFP-10GB-SR 10GBASE-SR SFP+ 850nm 300m Transceiver
Cisco Meraki Compatible MA-SFP-10GB-SR 10GBASE-SR SFP+ 850nm 300m Transceiver
  • Device Type: Transceiver
  • Model #: PTNO-19C-0645
  • Item #: 9SIAUSYGAU1681
  • Return Policy: View Return Policy
$13.95
  • $12.07 - $13.95
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 #: 9SIAUSYGAU1313
  • Return Policy: View Return Policy
$9.09
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  • $8.36 - $9.09
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 #: 9SIAUSYGAU1279
  • Return Policy: View Return Policy
$25.79
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  • $23.73 - $25.79
HP Compatible 455886-B21 455888-001 456097-001 10Gbps SFP+ 1310nm 10km SMF HPE
HP Compatible 455886-B21 455888-001 456097-001 10Gbps SFP+ 1310nm 10km SMF HPE
  • Device Type: Transceiver
  • Model #: PTNO-19C-0649
  • Item #: 9SIAUSYGAU1487
  • Return Policy: View Return Policy
$24.82
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  • $22.83 - $24.82
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 #: 9SIAUSYGAU1294
  • Return Policy: View Return Policy
$27.37
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  • $25.18 - $27.37
Cisco Compatible GLC-SX-MMD 1000Base-SX MMF 850nm 550m DOM
Cisco Compatible GLC-SX-MMD 1000Base-SX MMF 850nm 550m DOM
  • Device Type: Transceiver
  • Model #: PTNO-19C-0578
  • Item #: 9SIAUSYGAU1533
  • Return Policy: View Return Policy
$7.95
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  • $7.31 - $7.95
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 #: 9SIAUSYGAU1630
  • Return Policy: View Return Policy
$10.00
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  • $9.20 - $10.00
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 #: 9SIAUSYGAU1307
  • Return Policy: View Return Policy
$13.42
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  • $12.35 - $13.42
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 #: 9SIAUSYGAU1920
  • Return Policy: View Return Policy
$9.99
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  • $9.19 - $9.99
Palo Alto Networks Compatible PAN-SFP-SX - 1000BASE-SX 550m 850nm SFP
Palo Alto Networks Compatible PAN-SFP-SX - 1000BASE-SX 550m 850nm SFP
  • Device Type: Transceiver
  • Model #: PTNO-19C-0011
  • Item #: 9SIAUSYGAU1280
  • Return Policy: View Return Policy
$22.94
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  • $21.10 - $22.94
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 #: 9SIAUSYGAU1334
  • Return Policy: View Return Policy
$21.27
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  • $19.57 - $21.27
D-Link DEM-310GT Compatible 1000BASE-LX SFP 1310nm 10km DOM Transceiver
D-Link DEM-310GT Compatible 1000BASE-LX SFP 1310nm 10km DOM Transceiver
  • Device Type: Transceiver
  • Model #: PTNO-19C-0600
  • Item #: 9SIAUSYGAU1670
  • Return Policy: View Return Policy
$13.51
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  • $12.43 - $13.51
Palo Alto Networks Compatible PAN-SFP-LX - 1000BASE-LX 10km 1310nm SFP
Palo Alto Networks Compatible PAN-SFP-LX - 1000BASE-LX 10km 1310nm SFP
  • Device Type: Transceiver
  • Model #: PTNO-19C-0012
  • Item #: 9SIAUSYGAU1283
  • Return Policy: View Return Policy
$28.93
Free Shipping
  • $26.62 - $28.93