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Experts Support
+852 6489 7340 (HK)
+86 136 8070 2962 (China)
15 Years Project Experience
Overview (S6720-54C-EI-48S-AC)
High-capacity 10 GE switches with 40 Gbit/s QSFP+ ports, ideal for high-density 10 Gbit/s server access in data centers or IDCs, or as core switches for enterprise campus networks.

1 Forty-eight 10GE SFP+ ports
Applicable modules and cables:
  • GE optical module
  • GE-CWDM optical module
  • GE-DWDM optical module
  • GE copper module (100M/1000M auto-sensing supported in V200R009 and later versions)
  • 10GE SFP+ optical module (OSXD22N00 and SFP-10G-ZR not supported)
  • 1 m, 3 m, 5 m, and 10 m SFP+ high-speed copper cables
  • 3 m and 10 m SFP+ AOC cables
  • 0.5 m and 1.5 m SFP+ dedicated stack copper cables (the last 16 ports are supported, used for zero-configuration stacking, supported in V200R011C10 and later versions)
2 Two 40GE QSFP+ ports
Applicable modules and cables:
  • QSFP+ optical module
  • 1 m, 3 m, and 5 m QSFP+ to QSFP+ high-speed copper cables
  • 1 m, 3 m, and 5 m QSFP+ to 4*SFP+ high-speed copper cables
  • 10 m QSFP+ to QSFP+ AOC cable (applicable in V200R009C00 and later versions)
  • 10 m QSFP+ to 4*SFP+ AOC cable (applicable in V200R009C00 and later versions)
A 40GE QSFP+ optical port can be split into four 10GE ports.
3 One ETH management port 4 One console port
5 One USB port 6 Ground screw
It is used with a ground cable.
7 ESN label

You can draw it out to view the ESN and MAC address of the switch.

8 Rear card slot
Card supported:
  • ES5D21Q04Q01
  • ES5D21X08S00 (applicable in V200R012C00 and later versions)
9 Fan slot

Applicable fan module: FAN-060B-B Fan Module

10 Power module slot 2
Applicable power modules:
  • 350 W DC power module
  • 600 W AC power module
11 Power module slot 1
Applicable power modules:
  • 350 W DC power module
  • 600 W AC power module
- -



Memory (RAM)

2 GB


512 MB in total. To view the available flash memory size, run the display version command.

Mean time between failures (MTBF)

79.39 years when no interface card is configured; 69.86 years when a 4-port 40GE interface card is configured

Mean time to repair (MTTR)



> 0.99999

Service port surge protection


Power supply surge protection

  • Using AC power modules: ±6 kV in differential mode, ±6 kV in common mode
  • Using DC power modules: ±1 kV in differential mode, ±2 kV in common mode

Dimensions (W x D x H)

442.0 mm x 420.0 mm x 44.4 mm (17.4 in. x 16.5 in. x 1.74 in.)

Weight (including packaging materials)

10.2 kg (22.49 lb)

Stack ports

  • Any 10GE SFP+ ports on the front panel (a maximum of 16 physical ports)
  • Any 40GE QSFP+ ports (a maximum of 6 physical ports)




Not supported


Not supported

Rated voltage range

100 V AC to 240 V AC, 50/60 Hz

-48 V DC to -60 V DC

Maximum voltage range

90 V AC to 264 V AC, 47 Hz to 63 Hz

-38.4 V DC to -72 V DC

Maximum power consumption (100% throughput, full speed of fans)

296.1 W

Typical power consumption (30% of traffic load, tested according to ATIS standard)

  • 190 W (without card)
  • 209 W (with card)

Operating temperature

0°C to 45°C (32°F to 113°F) at an altitude of 0-1800 m (0-5906 ft.)

When the altitude is 1800-5000 m (5906-16404 ft.), the highest operating temperature reduces by 1°C (1.8°F) every time the altitude increases by 220 m (722 ft.).

Storage temperature

-40°C to +70°C (-40°F to +158°F)

Noise under normal temperature (27°C, sound power)

< 72.1 dBA

Relative humidity

5% to 95%, noncondensing

Operating altitude

0-5000 m (0-16404 ft.)


  • EMC certification
  • Safety certification
  • Manufacturing certification

Part number


Routerbiz support most kinds of shipping method.

By customer's shipping agent or express account:
Customers can use your own shipping agent or express account(DHL Fedex, TNT, UPS…etc)
1. Pls arrange to pick up from our warehouse directly.
2. Routerbiz can delivery cargoes to appointed address locally, while shipping cost will be quoted to customer separately.

Flexible shipping methods for your choice:

  Delivery Options Estimated Delivery Time
DHL 2-4 business days
Fedex 2-4 business days
TNT 2-4 business days
UPS 2-4 business days
By Air 4-10 business days
By Sea 10-20 business days

If you want to check shipping cost, pls contact with our sales representative:

Whatsapp:+852 64897340 makes payment easy for your order, we accept Wire Transfer/Western Union/ Paypal/Credit Card/MoneyGram. guarantee customers' online security, every online transaction will been sent through high-secure server, it with 128-bit encrypted technology to make your account safe.

Please visit Payment Methods for details.

If any problem during payment, pls contact with our or get on-line support though Livechat :

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Thanks for your business!

Our Credit Card Policy requires all shipments to be sent only to the account holder's home or Business address. For security we cannot redirect packages to a person other than the card holder.In certain cases,
Routerbiz will consider to shipping to an alternate address.

We also may require that you:

1. Fill out the Card Authorization document and sign on the line indicated.
2. Include a copy of your Identification document
3. Copy of the Credit Card (both sides)

If Routerbiz determines an order to be a high risk order, Server Supply will only accept "Wire transfer" as a payment method.

1. 100% Quality Assurance:

Guarrantee all items are ORIGINAL and GENUINE only.
All new device past manufacture quality test;
Used /Refurbished items have to past test with good condition before shipment.

2. Warranty Terms

New items with 1 year manufacture warranty since shipping date.
Used/Refurbished items with 90 days warranty since shipping date.

3. After-sale Service

Build after-sale service department, consist of engineer & service representative.
Provide professional & efficient service.

4. Free CCIE/Experts Technical Support

Technical assistance on-line or by email Software download & network health check

Routerbiz will work together with you to solve problem till customers satisfied.

This warranty covers manufacturing defects in materials and workmanship encountered in normal, reasonable use of the product during the warranty period. This warranty does not apply:
> to abnormal wear and tear
> if the product has been mistreated or mishandled
> if the product has been improperly installed or configured
> if the product has been subject to an accident
> if the product has been subject to lightning, power surges or incorrect electrical voltage
> if the product has been modified."
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