Brocade 100G-Q28-Q28-C-0501 Compatible 5m (16ft) 100G QSFP28 Passive Direct Attach Copper Cable Bulk Wholesale | HYTOPTODEVICE

For detailed technical specifications, please refer to the Datasheet

Usage Guidelines & Best Practices

• Mandatory Port Setting: Host QSFP28 port must enable 100GBASE-CR4 mode; link negotiation failure will happen if forced to optical mode.

• Cabling Requirements: Do not exceed the minimum 50mm bend radius, avoid sharp folding, heavy extrusion or long-term tension on the cable assembly.

• Port Installation Standard: Works only with standard QSFP28 100G ports; cannot be inserted into SFP+ or XFP slots. Disable the host’s third-party transceiver lock policy in advance if required.

• Maintenance Specification: Hot‑swap supported, grip the pull tab instead of pulling the cable body during plug/unplug to prevent internal conductor damage.

• Testing & Storage: Run sample validation on target hardware before large bulk deployment; store spare cables in dry, dust‑free and anti‑static packaging.

For detailed operation instructions, please refer to the User Guide.

Full Compatibility List & Supported Devices

1. Validated Brocade Hardware & Firmware

• Brocade VDX series：VDX6940, VDX6960, VDX8770
• Brocade ICX high-performance series：ICX7850, ICX7750
• Broadcom / Brocade OEM 100G switch platforms with QSFP28 ports
• Firmware：NetIron OS 8.0.30, 8.0.40, 9.0.10, 9.0.20

2. Multi-Brand Cross Interoperability

Built on universal MSA open standards, this 100G QSFP28 passive copper twinax cable can interoperate with mainstream network brands including Arista, H3C, Juniper, Dell, NVIDIA Mellanox and more, for mixed-vendor rack stacking and server fabric expansion.

3. Free Value-Added Services

2. 100G to 100G Direct Link for Switch-NIC

3.Upgrade Solution for 400G Data Center Network

The Core Feature

1. Cost-Effective Ultra-Short Connectivity

Using twinax copper, the 100G passive copper cable replaces a fiber pair and two optical transceivers, significantly cutting interconnect cost for short-reach links — plug-and-play, no modules required.

2. Ultra-Low Power, Maximum Energy Efficiency

The 100g qsfp28 passive copper twinax cable draws near-zero power, reducing heat and energy costs in dense racks, while delivering a cost-effective, low-latency 100G link for short-reach connections — within a rack or across adjacent racks.

3.Host-Device Tested for Proven Interoperability

4. 100% Individually Tested for Peak Performance

Every single unit is tested individually — no sampling, no shortcuts — to ensure optical compliance and continuous operational stability. Curious how we do it? Take a virtual tour of our Test Center.

FAQ

Q1: What is the certified maximum operating length of HYTOPTODEVICE 100G passive direct attach copper cable? A: The industry maximum reach for 100GBASE-CR4 passive QSFP28 DAC is 5 meters. It is limited by copper insertion loss and crosstalk at 25G per lane, so HYTOPTODEVICE passive twinax DACs are offered in 0.5m,1m,1.5m,2m,3m,5m options within this limit.

Q2: Can exceeding the marked 5m rating trigger persistent link drops on Brocade NetIron switches? A: Yes, link failures or CRC errors are very likely. Exceeding rated length pushes signal loss past the chip’s equalization budget. HYTOPTODEVICE only supplies DACs matched to the labeled length to avoid such instability.

Q3: Are short-length HYTOPTODEVICE passive direct attach copper cables prone to unwanted signal bounce? A: Properly manufactured short passive DACs do not create reflection problems. HYTOPTODEVICE controls impedance tightly at 100Ω differential, and our short variants pass return loss testing to keep reflections within MSA specs.

Q4: Can buyers independently rewrite the EEPROM signature stored inside HYTOPTODEVICE passive direct attach copper cable? A: Standard off-the-shelf HYTOPTODEVICE DACs are pre-coded and locked for stability. We support customer requirements. We can supply coding tools, software and related services, and even provide remote guidance for you.

Q5: Can NetIron OS firmware upgrades break the recognition of third-party passive direct attach copper cable? A: It happens occasionally on major OS releases when vendors tighten EEPROM validation rules. HYTOPTODEVICE keeps EEPROM profiles updated and validates against mainstream firmware versions to reduce this risk. We can assist customers with recoding when necessary.

Q6: What details should customers submit to HYTOPTODEVICE for a correctly pre-coded Brocade-compatible passive direct attach copper cable? A: We need switch brand, exact model, OS version, and required PN to match the EEPROM. Share these details with HYTOPTODEVICE, and we will pre-test the profile before dispatch.

Q7: What shielding construction protects HYTOPTODEVICE passive direct attach copper cable from near-end and far-end crosstalk? A: Individually shielded twinaxial (SFP/QSFP twinax) copper pairs surrounded by an overall braid and foil shield prevent near-end and far-end crosstalk. This dual-layer design suppresses crosstalk and EMI for HYTOPTODEVICE high-speed DACs.

Q8: Does HYTOPTODEVICE run full frequency-domain signal integrity validation for every batch of passive direct attach copper cable before dispatch? A: Yes, every production batch runs TDR, insertion loss, return loss and crosstalk sampling. HYTOPTODEVICE rejects units out of spec to guarantee consistent signal integrity for 100G links.

Q9: How sturdy are the integrated pull tabs on HYTOPTODEVICE passive direct attach copper cable for repeated plug cycles? A: Our pull tabs use reinforced plastic overmolding and strain relief. Under normal hot-swap operation, they resist breakage; HYTOPTODEVICE designs them for repeated plug/unplug in dense data center racks.

Q10: Does the outer jacket of HYTOPTODEVICE passive direct attach copper cable satisfy data center low-smoke fire requirements? A: Yes, the jacket material meets LSZH low-smoke zero-halogen requirements, suitable for data center aisle deployment. All HYTOPTODEVICE DAC jackets follow standard fire safety specifications.

Q11: How much expenditure reduction can be realized by replacing optical links with HYTOPTODEVICE passive direct attach copper cable? A: Typically you can save 40%–70% versus paired QSFP28 optics plus fiber patch cords for short rack links. HYTOPTODEVICE passive DAC removes optical component costs for same-rack leaf-spine connections.

Q12: What deployment scenario favors HYTOPTODEVICE passive direct attach copper cable instead of optical transceivers plus fiber patch cords? A: Pick passive DAC for intra-rack links ≤5m where low latency, zero power and lower cost matter. Choose fiber optics when runs exceed 5m or you need isolation between racks or buildings.

Q13: What warranty and RMA terms apply to HYTOPTODEVICE Brocade compatible passive direct attach copper cable? A: HYTOPTODEVICE provides a 5-year warranty for manufacturing defects. If pre-coded cables fail compatibility due to our EEPROM profile, we support free RMA replacement after troubleshooting confirmation.

Q14: What lead time and ordering flexibility are available for custom EEPROM programmed HYTOPTODEVICE passive direct attach copper cable? A: Standard stocked DACs ship quickly. Custom EEPROM coded orders have flexible MOQ, we try our best to accommodate customer demands. Contact HYTOPTODEVICE sales for exact MOQ and schedule for your custom project.

Q15: Are HYTOPTODEVICE Brocade compatible passive direct attach copper cable compliant with RoHS, CE, FCC and MSA industry specifications? A: Yes, all HYTOPTODEVICE QSFP28 passive DAC cables are MSA compliant, RoHS, CE and FCC certified, suitable for global data center and enterprise network deployment.