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Zoom Technologies Inc. > 
Item#: N82E16825387003

Zoom 5341J 343 Mbps DOCSIS 3.0 8X4 Cable Modem-Certified Refurbished


This means the product was tested and repaired as required to meet the standards of the refurbisher, which may or may not be the original manufacturer. Any exceptions to the condition of the item outside the manufacturer’s information should be provided in the listing, up to and including warranty details.

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  • Fast Internet! Up to 343 Mbps downstream and 143 Mbps upstream. Fast Ethernet port! 10/100/1000 Mbps Ethernet port connects to your Windows or Macintosh computer, router, wireless access point, HomePlug adapter, or other Ethernet-enabled device. This is MODEM ONLY
  • Supports all popular DOCSIS cable modem standards - 3.0, 2.0, and 1.1. Tested and certified by CableLabs to work with nearly all U.S. cable service providers including Comcast, Cox, Time Warner Cable, Brighthouse and Cable ONE.
  • Includes advanced networking capability including IPv4 and IPv6 for powerful, flexible network addressing.
  • Includes energy-saving switching power cube, Ethernet cable, modem stand, and Quick Start flyer.
  • Small, attractive cable modem can lie flat or stand up using the stand provided.

  • Specifications
  • Warranty & Returns
  • Reviews

Learn more about the Zoom Technologies Inc. 5341J




Cable Modem
Ethernet Port
Cable Interface
1 x 10/100/1000M RJ-45
Max Transmission Rate
Up to 343 Mbps Downstream, up to 123 Mbps Upstream


Cable modem service interface: F-type female 75 ohm (standard coaxial connector)

Ethernet LAN interface: RJ-45 10 / 100 / 1000 Mbps Ethernet, with Auto-MDI / MDIX

Status indicators: Power, Downstream link, Upstream link, Connection Status, Ethernet link

Power adapter: Level V energy-saving, switching power supply with 12 Volt DC, 1 Amp output. NEMA 5-15 (North American style) plug is standard. Other
plugs are available.

Operating temperature: 32 degree to 104 degree F (0 degree to 40 degree C)

System requirements:

The cable modem must be connected to a cable modem service that uses any of the DOCSIS standards - 3.0, 2.0, 1.1
An available Ethernet port on a Windows, Mac, or Linux computer, or an available WAN Ethernet port on a wired or wireless router.
Approvals: FCC part 15B, Bureau Veritas for IEC 60950-1:2005 (2nd Ed.) safety, CE, CableLabs

Warranty: Two years

Package contents: Cable modem, modem stand, power cube, Ethernet cable, Quick Start flye

Data rate: Up to 343 Mbps (8 channels), Up to 43 Mbps (single channel)
Frequency: 88 to 1002 MHz (edge to edge)
Modulation: 64 or 256 QAM
Operating level range: -15 to +15 dBmV

Data rate: Up to 123 Mbps (4 channels), Up to 31 Mbps (single channel)
Frequency: 5 to 42 MHz (edge to edge)
Modulation: QPSK, 8QAM, 16QAM, 32QAM, 64QAM,128QAM, 256QAM
Operating level range:
A-TDMA: +8 to +54 dBmV (32QAM, 64QAM), +8 to +58 dBmV (QPSK)
S-CDMA: +8 to +53 dBmV (all modulations)

Security: DOCSIS 3.0 Security (BPI+, EAE, SSD)

Network protocols: IPv4, IPv6, TCP, UDP, ARP, ICMP, DHCP, FTP, TFTP, SNMP, HTTP
Application protocol: SNMP v1 / v2 / v3
DHCP client: Automatically retrieves IP and DNS server address from DHCP server at ISP
ToD (RF868): ToD support for local and MSO time synchronization
TFTP client: TFTP support for cable modem configuration file download
Management: Web-based management interface utility

Core chipset: Broadcom BC
Warranty, Returns, And Additional Information
  • Warranty
  • Limited Warranty period (parts): 90 days
  • Limited Warranty period (labor): 90 days
  • Read full details
  • Return Policies
    • Return for refund within: 30 days
    • Return for replacement within: 30 days
  • This item is covered by's Standard Return Policy.
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