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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.
- KEYSTRON MEMORY & NETWORK SOLUTIONS STORE
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- KEYSTRON MEMORY & NETWORK SOLUTIONS STORE
All Products
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About Us
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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
- Model #: FCLF8521P2BTL-DL
- Item #: 9SIV9XCH181765
- Return Policy: View Return Policy
$100.50
- Model #: a14-279966000392024
- Return Policy: View Return Policy
$33.93
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
- Model #: E10GSFPSR ---**
- Item #: 9SIV9XCH181567
- Return Policy: View Return Policy
$120.98
- Type: Controller Card
- Model #: E10GSFPSR --
- Item #: 9SIV9XCH181566
- Return Policy: View Return Policy
$78.98
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
- Model #: FCLF8522P2BTL-DL
- Item #: 9SIV9XCH181672
- Return Policy: View Return Policy
$79.74
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
- 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
- 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
- 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
- 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
- Device Type: Transceiver
- Model #: PTNO-19C-0581
- Item #: 9SIV9XCGZ38897
- Return Policy: View Return Policy
$9.90
Arista Network Compatible SFP-1G-SX 1GE-SX XVR-00005-02 850nm 550m over MMF
- Device Type: Transceiver
- Model #: PTNO-19C-0136
- Item #: 9SIV9XCGZ38768
- Return Policy: View Return Policy
$8.99
NEW DEM-311GT 100% D-Link Compatible 1000BASE-SX SFP LIFETIME WARRANTY
- Device Type: Transceiver
- Model #: PTNO-19C-0599
- Item #: 9SIV9XCGZ38928
- Return Policy: View Return Policy
$10.00
HP Compatible JD094B HPE PROCURVE X130 10G SFP+ LC LR TRANSCEIVER Made in USA
- Device Type: Transceiver
- Model #: PTNO-19C-0594
- Item #: 9SIV9XCGZ38918
- Return Policy: View Return Policy
$19.50
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
- Device Type: Transceiver
- Parts: 30 days warranty
- Labor: 30 days warranty
- Model #: E65689001
- Return Policy: View Return Policy
$23.89
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
- 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
- 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
- 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
- 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
- Device Type: Transceiver
- Model #: PTNO-19C-0086
- Item #: 9SIV9XCGZ38756
- Return Policy: View Return Policy
$11.95
- Type: Controller Card
- Parts: 30 days warranty
- Labor: 30 days warranty
- Model #: E10GSFPSR ---
- Return Policy: View Return Policy
$71.98
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
- 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
- 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.
- Device Type: Transceiver
- Model #: PTNO-19C-0133
- Item #: 9SIV9XCGZ38762
- Return Policy: View Return Policy
$23.00
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
- 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
- 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
- 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
- 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
- Device Type: Transceiver
- Model #: PTNO-19C-0627
- Item #: 9SIV9XCGZ38908
- Return Policy: View Return Policy
$19.50
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
- Model #: 0fa-140868000202106
- Return Policy: View Return Policy
$68.35
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.
- 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
- Device Type: Transceiver
- Model #: PTNO-19O-0753
- Item #: 9SIV9XCGZ38971
- Return Policy: View Return Policy
$16.98
- Model #: E10GSFPSR ***
- Return Policy: View Return Policy
$78.98
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
- Model #: 998364697083
- Item #: 9SIV9XCH181594
- Return Policy: View Return Policy
$44.98
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
- 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
- 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
- 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
- Device Type: Transceiver
- Model #: PTNO-19C-0593
- Item #: 9SIV9XCGZ38913
- Return Policy: View Return Policy
$11.50
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
- Device Type: Transceiver
- Model #: PTNO-19C-0661
- Item #: 9SIV9XCGZ38884
- Return Policy: View Return Policy
$179.00
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
- 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
- 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
- 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
- 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
- Device Type: Transceiver
- Model #: PTNO-19O-0754
- Item #: 9SIV9XCGZ38970
- Return Policy: View Return Policy
$25.50
Dell Compatible 320-2879 1310nm 1000BASE-LX SFP Transceiver Module SFM 10Km
- Device Type: Transceiver
- Model #: PTNO-1A8-0002
- Item #: 9SIV9XCGZ38974
- Return Policy: View Return Policy
$15.00
SFP-1G-T Arista Compatible SFP 1000base-T Transceiver SFP-RJ45 XVR-00007-02
- Device Type: Transceiver
- Model #: PTNO-19C-0711
- Item #: 9SIV9XCGZ38926
- Return Policy: View Return Policy
$18.00
HP Compatible HPE QK725A 16Gb LW B-series SFP+1310nm 10km 1310nm SMF NEW
- Device Type: Transceiver
- Model #: PTNO-19C-0687
- Item #: 9SIV9XCGZ38896
- Return Policy: View Return Policy
$89.00