DS-X9648-1536K9 – 48x 32G Fibre Channel Ports – Single Slot – MDS 9700 Switching Module

Cisco SN CheckSN verification before shipment.Verify authenticity3-Year WarrantyExtended, enterprise-gradeWarranty terms14-Day ReturnsStraightforward RMA processReturn policy
4.710 reviews4 Questions
List Price: $102,516.14 82% OFF
$18,735.00
Price Alert
Condition
Related
Quantity
Shipping Express Shipping 2-6 Business Days, via UPS, FedEx, DHL and more
Trusted & Secure Payments

Why Layer23-Switch

Stocked, Shipped and Supported by One Team

Founded
Customers
Units shipped
Countries

Inventory You Can See

Cisco stock on hand
Models ready to ship
Warehouse space

Ships in 1 Business Day

In-stock orders leave our Hong Kong or U.S. warehouse within 1 business day after payment, with tracking by email.

DHL FedEx UPS Duties included: US · CA · UK

LSCare Warranty

3years on enterprise equipment

  • Advance replacement for in-stock models
  • New unit for dead-on-arrival
  • 14-day returns on sealed items

Free CCIE Support

Certified engineers help before and after you buy. Reply within 1 business day by email or live chat.

Part number check Configuration Troubleshooting

Verify Before You Pay

100%factory-sealed

Get label and serial photos before shipment, and check every serial number with Cisco.

DS-X9648-1536K9 Description

The DS-X9648-1536K9 is a Cisco MDS 9700 48-Port 32-Gbps Fibre Channel Switching Module for MDS 9700 Series director chassis. The module has 48 ports running 4/8, 4/8/16 and 8/16/32-Gbps autosensing Fibre Channel, with 500 buffer credits per port by default and up to 8270 on one port under an Enterprise license. The module does not support 2-Gbps Fibre Channel, and a chassis with four of them needs at least six Fabric-1 or three Fabric-3 modules.

Quick Specs

Parameter

Specification

Product ID

DS-X9648-1536K9

Port count and speeds

48 ports at 4/8-Gbps, 4/8/16-Gbps and 8/16/32-Gbps autosensing Fibre Channel

Lowest supported speed

2-Gbps Fibre Channel is not supported on this 32-Gbps module

Default buffer credits

500 per port

Enterprise license buffer credits

8300 shared among a single port group of 16 ports, with 8270 maximum per port

Port channel

Up to 16 ports

Optics and reach

32-Gbps shortwave at 70 m OM3 and 100 m OM4, 32-Gbps longwave at 10 km, 16-Gbps shortwave at 100 m OM3 and 125 m OM4, 16-Gbps longwave at 10 km

Fabric module requirement

Four of these cards in one chassis need a minimum of six Fabric-1 or three Fabric-3 modules

Physical form

Occupies one chassis slot, 1.75 x 15.9 x 21.8 in. (4.4 x 40.39 x 55.37 cm), 7.94 kg (17.5 lb)

Software compatibility

Cisco MDS NX-OS Software Release 8.1(1) or later for the module, with 8.4.1 or later for Supervisor-4 and Fabric-3

Product Performance

Fibre Channel Ports Per Module
Maximum Port Speed
Maximum Buffer Credits Per Port

Application Scenarios

Enterprise SAN Core Slots

In an MDS 9700 director, the module terminates 48 host or array connections at 16 or 32-Gbps Fibre Channel on one card.

Long-Distance Replication Links

Ports carrying array-to-array replication over long fiber runs draw on the Enterprise license buffer credit pool, up to 8270 credits on a single port, to keep the link full.

Product Comparison

Parameter

DS-X9648-1536K9

DS-X9748-3072-TK9

DS-X9748-3072-VK9

Fibre Channel ports

48

48

48

Port speed

32-Gbps Fibre Channel

64-Gbps Fibre Channel

64-Gbps Fibre Channel

Optics supplied

No optics included

48 x 32-Gbps shortwave

48 x 64-Gbps shortwave

Supported chassis

Cisco MDS 9710

Cisco MDS 9710

Cisco MDS 9710

Default buffer credits per port

500

Not published

Not published

Minimum fabric modules for four cards

Six Fabric-1 or three Fabric-3

Not published

Not published

DS-X9648-1536K9 is the 32-Gbps member of this group, while DS-X9748-3072-TK9 and DS-X9748-3072-VK9 are 64-Gbps class modules with the same 48 ports. DS-X9648-1536K9 carries no optics, so each populated port needs a separate SFP+ line, whereas DS-X9748-3072-TK9 includes 48 x 32-Gbps shortwave optics and DS-X9748-3072-VK9 includes 48 x 64-Gbps shortwave optics. Links that must run at 64-Gbps from day one need DS-X9748-3072-VK9. A director with three Fabric-3 modules already meets the stated minimum for four DS-X9648-1536K9 cards, and the table gives no separate fabric minimum for the 64-Gbps modules.

Ordering Checklist

  • MDS 9710 director: Confirm the target chassis is an MDS 9710 with a free line card slot. The MDS 9710 ordering table lists DS-X9648-1536K9 as a line card for that chassis.
  • Fabric generation: Install at least 6 Fabric-1 or 3 Fabric-3 modules for four cards, as in DS-C9710-V2K9 with 3 Fabric-3 modules. This is the fabric minimum for a chassis fully populated with 48-Port 32-Gbps cards.

Specifications

Parameter Specification Parameter Specification
Product ID DS-X9648-1536K9 Cisco ordering description MDS 9700 48-Port 32-Gbps Fibre Channel Switching Module
Total ports 48 Fibre Channel ports Port speeds 4/8-Gbps, 4/8/16-Gbps and 8/16/32-Gbps autosensing Fibre Channel
Unsupported speed 2-Gbps Fibre Channel is not supported on the 32-Gbps module Default buffer credits 500 per port
Enterprise license buffer credits 8300 shared among a single port group of 16 ports, with 8270 maximum credits per port Port channel Up to 16 ports
32-Gbps shortwave optics LC SFP+ over 50/125-micron multimode, 70 m on OM3 and 100 m on OM4 32-Gbps longwave optics LC SFP+ over 9/125-micron single mode, 10 km
16-Gbps shortwave optics LC SFP+ over 50/125-micron multimode, 100 m on OM3 and 125 m on OM4 16-Gbps longwave optics LC SFP+ over 9/125-micron single mode, 10 km
Serviceability Nondisruptive software upgrades for Fibre Channel interfaces, Cisco Call Home, power-management LEDs, port beaconing, system LED, SNMP traps for alerts and network boot Hot swap Switching modules and SFP+ optics are hot-swappable on the MDS 9700 platform
Physical dimensions (H x W x D) 1.75 x 15.9 x 21.8 in. (4.4 x 40.39 x 55.37 cm) Weight 7.94 kg (17.5 lb)
Fabric module requirement A fully populated chassis with four of these cards requires a minimum of six Fabric-1 or three Fabric-3 modules Comparison with the 16-Gbps card The 48-Port 16-Gbps line card shares the same footprint at 7.71 kg (17 lb) and needs three fabric modules for four cards, with four for N+1 redundancy
Software compatibility Cisco MDS NX-OS Software Release 8.1(1) or later for the module, with 8.4.1 or later for Supervisor-4 and Fabric-3 support Relative humidity 10 to 95 percent nonoperating and storage
Operating altitude -197 to 6500 ft (-60 to 2000m) Regulatory compliance CE Markings per directives 2004/108/EC and 2006/95/EC
Safety certifications UL 60950-1 Second Edition, CAN/CSA-C22.2 No. 60950-1 Second Edition, EN 60950-1 Second Edition, IEC 60950-1 Second Edition, AS/NZS 60950-1 and GB4943 2001 EMC certifications 47CFR Part 15 Class A, AS/NZS CISPR22 Class A, CISPR22 Class A, EN55022 Class A, ICES003 Class A, VCCI Class A, EN61000-3-2, EN61000-3-3, KN22 Class A, CNS13438 Class A, EN55024, CISPR24, EN300386 and KN24

Get More Information

Need pricing, stock, or shipping details for the DS-X9648-1536K9 ? Layer23-Switch can help you check current availability, lead time, and delivery options for this. Send us the part number, quantity, and destination country via live chat or email [email protected] for a fast quotation.

Quality Certifications

Customer Reviews

Write A Review
4.7
(10 reviews)
5 Stars
7
4 Stars
3
3 Stars
0
2 Stars
0
1 Stars
0
    Lauren P.
    Posted on 11/08/2026
    Verified Buyer
    5.0

    fine.

    Luis K.
    Posted on 07/07/2026
    Verified Buyer
    5.0

    exactly right, very easy

    Glen M.
    Posted on 23/06/2026
    Verified Buyer
    5.0

    chassis picked it up, saved us a lot against the OEM quote. good price for what it is.

    Ravi
    Posted on 11/06/2026
    Verified Buyer
    5.0

    Fits and works, saved us a lot against the OEM quote

    Kurt T.
    Posted on 03/06/2026
    Verified Buyer
    4.0

    turned up a day early, good price for a genuine part. easy to place the order

Questions & Answers

  • Which BIOS version resolves CVE-2024-57258 on DS-X9648-1536K9?

    BIOS version 04.01.05.7 is the version listed for DS-X9648-1536K9 against CVE-2024-57258 in the BIOS table of the MDS NX-OS release notes. The CVE appears there as the resolved caveat for this module, so that BIOS version carries the fix.
  • Does DS-X9648-1536K9 have an EPLD image to update?

    Yes. The MDS EPLD release notes list DS-X9648-1536K9 as an Advanced Fibre Channel Module, with a Power Manager SPI EPLD at version 0.002. The EPLD is updated separately from the software image.
  • Does Cisco publish MTBF or maximum power for DS-X9648-1536K9?

    No. The module data sheet does not publish MTBF or maximum power consumption for DS-X9648-1536K9, and the MDS 9710 data sheet gives no MTBF per component. Chassis-level figures should not be read as module-level specifications.
  • What altitude and humidity limits apply to DS-X9648-1536K9?

    DS-X9648-1536K9 is rated for operating altitude from -197 to 6500 ft (-60 to 2000 m). Nonoperating and storage relative humidity is 10 to 95 percent. Sites above 2000 m fall outside the rated operating range.

Warranty

Visit How to Pay page for more information

FREE NETWORK TOOLS

Verify, plan, and comparewith confidence

Use practical tools to check device details, review lifecyclemilestones, and compare hardware before you buy.

Standard Services

Personalized Service, Superior Product Maintenance for Ultimate Satisfaction.

  • Projects and Technical Support
  • Easy Purchasing Supply
  • Product Lifecycle Protection
  • Exclusive F3 Team Support

Customized Support for Your Needs with CCIE, HCIE, HPE ASE, etc.

Shipping

DataSheet Downloads

  • DS-X9648-1536K9 Datasheet