Black Box Datasheets for Modular Connectors and RJ Connectors

Modular connectors and RJ connectors includes two similar, yet distinct styles of connectors. Modular connectors are made of "plug-in units" which can be added together to make the system larger, improve the capabilities, or expand its size. Registered Jack (RJ) is a telephone and data jack application specific connector registered with the FCC.
Modular Connectors and RJ Connectors: Learn more

Product Name Notes
100-Pack RJ45 Unshielded Modular Plug 6-Wire -- FMTP6-R2-100PAK
25-Pack RJ45 Unshielded Modular Plug 6-Wire -- FMTP6-R2-25PAK
250-Pack RJ45 Unshielded Modular Plug 6-Wire -- FMTP6-R2-250PAK
50-Pack RJ45 Unshielded Modular Plug 6-Wire -- FMTP6-R2-50PAK
8-conductor plug designed for high-speed applications. For 24 or 26AWG solid or stranded cable w/ diameter from -0.197-in. up to 0.354". Conductive NEXT Reduction system. Comply with FCC requirements. Meets/exceeds...
RJ45 Modular Plug For Round Solid Cable -- FM110 8-wire connectors can be used with flat satin or round solid cables. Use with modular telephone or data interfaces; use with 8-conductor solid wire. NOTE: Also available in multipacks of...
RJ45 Modular Plug for Round Stranded Cable -- FM105 Accepts wire gauges of 26 or 28 AWG. Works in a variety of settings.
Red Modular Adapter Kit DB25 Male to RJ45 Female -- FA4525M-RD Adapt DB25 RS-232 ports to RJ-45 modular jacks. Other colors, as well as RJ-11 versions also available.
Modular Adapter Kit DB25F To RJ45F w/ Thumbscrews Gray -- FA4525F-GY
Modular Adapter Kit DB25M To RJ45F w/ Thumbscrews Blue -- FA4525M-BL
Adapt DB25 RS-232 ports to RJ-45 or RJ-11 modular jacks. Available with 6-, 8-, and 10-wire connectors. Come as unassembled kits. Choose from up to six colors to code or...
Blue Modular Adapter Kit DB25 Female to RJ45 Female -- FA4525F-BL
Gray Modular Adapter Kit DB25 Male to RJ45 Female -- FA4525M-GY
Green Modular Adapter Kit DB25 Male to RJ45 Female -- FA4525M-GR
Adapt DB25 RS-232 ports to RJ-45 or RJ-11 modular jacks.
Gray CAT5e RJ45 Jack Coupler T-568B -- FM133GR Angled couplers protect your connectors from damage and to preserve the bend radius.
Modular Adapter Kit DB25M To RJ45F w/ Thumbscrews Black -- FA4525M-BK Available with 6-, 8-, and 10-wire connectors. Come as unassembled kits. Choose from up to six colors to code or coordinate with your cabling system. Guaranteed for life!
RJ45 Shielded Mod Splitter 1RJ45/4RJ45 A Pin -- FM810-R2
RJ45 Shielded Mod Splitter 1RJ45/4RJ45 B Pin -- FM815-R2
RJ45 Shielded Mod Splitter 1RJ45/4RJ45 B Pin W/ 2.5" Cable -- FM835-R2
RJ45 Unshielded Mod Splitter 1RJ45/4RJ45 A Pin W/ 2.5" Cable -- FM820-R2
Break out one RJ-45 modular jack or plug into four jacks. Connections are made via an integral circuit board. Guaranteed for life!
RJ45 Unshielded Mod Splitter 1RJ45/4RJ45 A Pin -- FM800-R2 Break out one RJ-45 modular jack or plug into four jacks. Connections are made via an integral circuit board.
50-Pack RJ11 Unshielded Modular Plug 4-Wire -- FMTP411-50PAK
RJ11 Unshielded Modular Plug 6-Wire 10-Pack -- FMTP611-10PAK
Can be used with flat satin or round solid cables. Available in multipacks of 10, 25, 50, and 100, as well as singly. Accepts wire gauges of 24, 26, or...
CAT6A RJ-45 MODULAR PLUG, SHIELDED 100-PACK -- FMTP6AS-100PAK CAT6A RJ-45 MODULAR PLUG - SHIELDED 100 PACK
CAT6A RJ-45 MODULAR PLUG, SHIELDED 200-PACK -- FMTP6AS-200PAK CAT6A RJ-45 MODULAR PLUG - SHIELDED 200 PACK
CAT6A RJ-45 MODULAR PLUG, SHIELDED 25-PACK -- FMTP6AS-25PAK CAT6A RJ-45 MODULAR PLUG - SHIELDED 25 PACK
CAT6A RJ-45 MODULAR PLUG, SHIELDED 50-PACK -- FMTP6AS-50PAK CAT6A RJ-45 MODULAR PLUG - SHIELDED 50 PACK
CAT6A RJ-45 MODULAR PLUG, SHIELDED 10-PACK -- FMTP6AS-10PAK CAT6A RJ45 MODULAR PLUG - SHIELDED 10 PACK
Black Modular Adapter Kit DB25 Female to RJ45 Female -- FA4525F-BK Choose from up to six colors to code or coordinate with your cabling system. Also available with 6- or 10-wire connectors. Adapter kit to adapt DB25 RS-232 ports to RJ-11...
10-Pack RJ45 Unshielded Modular Plug 6-Wire -- FMTP6-R2-10PAK Comply with FCC requirements for greater compatibility and performance. Meets or exceeds CAT6 specifications.
CAT5e Jack Coupler T-568A 2RJ45 Ivory -- FM130IV Consist of two modular RJ-45 jacks, each connected to a 4-pair S110 connecting block.
Modular Coupler RJ-11 4/6 Wire Cross-Pinned -- FM009 Couple RJ-11 cables. For RJ-11 cable. Guaranteed for life!
Microswitch Modem Adapter DB25 Male to RJ45 Female -- FA042 FA042 adapts to a DB25 male port for connecting a modem or DCE device to the switch.
Modular Coupler RJ-45 8-Wire Straight-Pinned -- FM018 For non-category-rated 8-wire RJ-45 cable. Couple RJ-45 cables. Guaranteed for life!
RJ45 Unshielded Mod Splitter 1RJ45/4RJ45 B Pin -- FM805-R2 For pinning information, see Application Diagram.
RJ45 Modular Toolless Plug 10-Pack -- FM122-R2 For use with UTP solid wire. Pack of 10 plugs. Place stripped wires in posts, close lid, and clamp down with pliers.
Office White CAT6A Unshielded RJ45 Keystone Jack -- FM10G23-R2 Guaranteed to meet ANEXT requirements in channel configurations from 1 meter (3.2 ft.) to 100 meters (328 ft.). Copper tape on sides and back reduces noise. Use with 22–26 AWG...
25-Pack Black USOC Jack RJ11 -- FMT239-25PAK
25-Pack Office White USOC Jack RJ11 -- FMT243-25PAK
25-Pack Orange USOC Jack RJ11 -- FMT244-25PAK
25-Pack Red USOC Jack RJ11 -- FMT245-25PAK
25-Pack White USOC Jack RJ11 -- FMT247-25PAK
Black USOC Jack RJ11 -- FMT239
Green USOC Jack RJ11 -- FMT241
Office White USOC Jack RJ11 -- FMT243
Orange USOC Jack RJ11 -- FMT244
White USOC Jack RJ11 -- FMT247
Yellow USOC Jack RJ11 -- FMT248
IDC contacts are phosphor bronze with tin plating. Nose contacts feature 50-micron gold plating over 100-micron nickel underplating. Make easy terminations using a 110 tool.
CAT6 EZ RJ45 Modular Plug Connector-Unshielded TAA 100-Pack -- C6EZUP-100PAK
CAT6 EZ RJ45 Modular Plug Connector-Unshielded TAA 25-Pack -- C6EZUP-25PAK
CAT6 EZ RJ45 Modular Plug Connector-Unshielded TAA 50-Pack -- C6EZUP-50PAK
Make faster terminations and reduce wasted crimps and scraps when terminating custom-length patch cables and crossover cables. Inpsect the wire placement before terminating to insure proper wire assignment. Dependable, simple...
10-Pack RJ45 Unshielded Modular Plug -- FMTP1045-10PAK Pack of 10 plugs.
Office White CAT5e Unshielded Keystone Jack RJ45 -- FM925C
Orange CAT5e Unshielded Keystone Jack RJ45 -- FM926C
Red CAT5e Unshielded Keystone Jack RJ45 -- FM927C
Yellow CAT5e Unshielded Keystone Jack RJ45 -- FM930C
Provides excellent NEXT and PS-NEXT margins with superior reliability. Low-profile wire cap protects against contamination and provides secure connections. A wide channel enables advanced conductor placement and termination.
CAT6 EZ RJ45 Modular Plug Connector - Shielded, TAA, 100-Pack -- C6EZSP-100PAK
CAT6 EZ RJ45 Modular Plug Connector - Shielded, TAA, 25-Pack -- C6EZSP-25PAK
CAT6 EZ RJ45 Modular Plug Connector - Shielded, TAA, 50-Pack -- C6EZSP-50PAK
Pull connector down over cable jacket so insulated wires go through plug nose. Inspect wiring before crimping connector. Done in 1 step w/ the EZ-RJ45 Crimp Tool. Make faster terminations...
Black Panel-Mount Unshielded Coupler RJ11 4-Wire -- FMT1080 R-45 version also available.
Black Panel-Mount Unshielded Coupler RJ45 8-Wire -- FMT1081 RJ-11 unshielded coupler also available.
10-Pack RJ45 Modular Plug For Round Stranded Cable -- FM105-10PAK
50-Pack RJ45 Modular Plug For Round Stranded Cable -- FM106
RJ-45 Stranded Modular Connectors (FM010) are for use with flat satin cable or oval stranded cable. RJ-45 Solid-Wire Modular Connectors (FM110) are for use with modular telephone or data interfaces;
Cat5e EZ RJ45 Modular Plug Connector-Shielded TAA 100-Pack -- C5EEZSP-100PAK
Cat5e EZ RJ45 Modular Plug Connector-Shielded TAA 25-Pack -- C5EEZSP-25PAK
Cat5e EZ RJ45 Modular Plug Connector-Shielded TAA 50-Pack -- C5EEZSP-50PAK
Cat5e EZ RJ45 Modular Plug Connector-Unshielded TAA 100-Pack -- C5EEZUP-100PAK
Cat5e EZ RJ45 Modular Plug Connector-Unshielded TAA 25-Pack -- C5EEZUP-25PAK
Cat5e EZ RJ45 Modular Plug Connector-Unshielded TAA 50-Pack -- C5EEZUP-50PAK
Simply pull the connector down over the cable jacket so that insulated wiring goes through the nose of the plug. Inspect the wiring prior to crimping the connector. It's done...
CAT5e Jack Coupler T-568A RJ45 Ivory -- FM132IV Single couplers consist of one RJ-45 jack connected to two 2-pair S110 connecting blocks.
10-Pack RJ45 Snagless Plug -- FM120 Special-application modular connector for phone or 10BASE-T LAN. Won't snag on wires or other obstructions. Guaranteed for life!
Modular Adapter RJ-11 4/6 Wire Straight-Pinned -- FM008 Split one phone line into two. Plug RJ-11 4- or-6-wire cable into the female ends of the adapters. Guaranteed for life!
10-Pack RJ11 Unshielded Modular Plug 4-Wire -- FMTP411-10PAK This 4-wire RJ-11 Modular Connector can be used with flat satin or round solid cables. Available in multipacks of 10, 25, 50, and 100, as well as singly. Accepts wire...
100-Pack RJ11 Unshielded Modular Plug 4-Wire -- FMTP411-100PAK This 4-wire RJ-11 Modular Connector can be used with flat satin or round solid cables.
100-Pack RJ11 4-Wire Modular Connector for Stranded Wire -- FM020-100PAK
RJ11 4-Wire Modular Connector for Stranded Wire -- FM020
This 4-wire RJ11 Modular Connector can be used with flat satin or round solid cables. Accepts wire gauges of 24, 26, or 28 AWG.
25-Pack RJ11 Unshielded Modular Plug 6-Wire -- FMTP611-25PAK
50-Pack RJ11 Unshielded Modular Plug 6-Wire -- FMTP611-50PAK
This 6-wire RJ-11 Modular Connector can be used with flat satin or round solid cables. Available in multipacks of 10, 25, 50, and 100, as well as singly. Accepts wire...
CAT5e Cable Adapter Doubler (1) RJ45 Male (2) RJ45 Female -- FAU962 Use a CAT5e Cable Economizer/ Doubler to link two ports on a hub to a single, 4-pair CAT5e UTP wallplate. Then use one at the other end to split the...
25-Pack White CAT6A Keystone Jack Unshielded RJ45 -- C6AJA70-WH-R2-25PAK
Blue CAT6A Keystone Jack Unshielded RJ45 -- C6AJA70-BL-R2
Blue CAT6A Keystone Jack Unshielded RJ45 -- C6AJA70-BL-R2-25PAK
White CAT6A Keystone Jack Unshielded RJ45 -- C6AJA70-WH-R2
Use in 10-GbE and PoE applications. Supports data rates up to 500-MHz. Includes stuffer cap. Termination is from the top. supports both T568A and T568B. Use with 22-24 AWG cable.
25-Pack Office White CAT6A Keystone Jack Unshielded RJ45 -- C6AJA70-OW-25PAK
Office White CAT6A Keystone Jack Unshielded RJ45 -- C6AJA70-OW
Use in 10-GbE networks. Supports data rates up to 500-MHz. Meets or exceeds TIA CAT6A specs.
25-PACK CAT6A RJ45 Unshielded Modular Plug -- FMTP6AU-25PAK Use this plug to terminate CAT6A UTP cable. Plug includes two boots to accommodate cable with diameters of 8.3 mm or up to 8.8mm
Adapter DB9M RJ45 DTE For Console Servers -- LES1516A-9MT Use to adapt a serial RJ-45 connector on the LES1500 Series Console Servers for a PC DTE connection.
Gray CAT6A Unshielded RJ45 Keystone Jack -- FM10G22-R2 Use with Black Box® 10-Gigabit CAT6A Patch Panels and 10-Gigabit CAT6A Patch Cables for CAT6A channel performance. Fits Black Box GigaStation wallplates and inserts.