Product comparison · 2 network cards

Lenovo 4XC1U87491 network card Internal WLAN / Bluetooth vs QNAP QXG-25G4SF-BCM network card Internal Fiber 25000 Mbit/s

6specifications compared
4differ
2identical
19known for one product only

Key differences

Connectivity technology: Wireless on the Lenovo 4XC1U87491 network card Internal WLAN / Bluetooth, Wired on the QNAP QXG-25G4SF-BCM network card Internal Fiber 25000 Mbit/s. Interface: WLAN / Bluetooth on the Lenovo 4XC1U87491 network card Internal WLAN / Bluetooth, Fiber on the QNAP QXG-25G4SF-BCM network card Internal Fiber 25000 Mbit/s. Component for: PC on the Lenovo 4XC1U87491 network card Internal WLAN / Bluetooth, NAS/storage server on the QNAP QXG-25G4SF-BCM network card Internal Fiber 25000 Mbit/s.

Connectivity technology
- 4XC1U87491 network card Internal WLAN / Bluetooth:Wireless
- QXG-25G4SF-BCM network card Internal Fiber 25000 Mbit/s:Wired
Interface
- 4XC1U87491 network card Internal WLAN / Bluetooth:WLAN / Bluetooth
- QXG-25G4SF-BCM network card Internal Fiber 25000 Mbit/s:Fiber
Component for
- 4XC1U87491 network card Internal WLAN / Bluetooth:PC
- QXG-25G4SF-BCM network card Internal Fiber 25000 Mbit/s:NAS/storage server

Side by side

Differences highlightedShow differences only

Comparison of 4XC1U87491, QXG-25G4SF-BCM
25 specifications	A Lenovo 4XC1U87491 network card Internal WLAN / Bluetooth Model 4XC1U87491 View product	B QNAP QXG-25G4SF-BCM network card Internal Fiber 25000 Mbit/s Model QXG-25G4SF-BCM View product
Ports & interfaces2 differ
Connectivity technologyDiffers	Wireless	Wired
Host interface	PCI Express	PCI Express
InterfaceDiffers	WLAN / Bluetooth	Fiber
Fiber optic connectorKnown for one	Unknown — not stated by the source	SFP+
Fiber ports quantityKnown for one	Unknown — not stated by the source	4
Network1 differ
Networking standardsDiffers	IEEE 802.11a, IEEE 802.11b, IEEE 802.11g, IEEE 802.11n, IEEE 802.11ac, IEEE 802.11ax, IEEE 802.11be	IEEE 802.1Qbb, IEEE 802.1Qaz, IEEE 802.1Qau
Frequency rangeKnown for one	2.4 - 6 GHz	Unknown — not stated by the source
BluetoothKnown for one	Yes	Unknown — not stated by the source
Bluetooth versionKnown for one	5.4	Unknown — not stated by the source
Maximum data transfer rateKnown for one	Unknown — not stated by the source	25000 Mbit/s
VLAN supportKnown for one	Unknown — not stated by the source	Yes
LAN controllerKnown for one	Unknown — not stated by the source	Broadcom 57504
Design1 differ
Internal	Yes	Yes
Component forDiffers	PC	NAS/storage server
AntennaKnown for one	Yes	Unknown — not stated by the source
Antenna designKnown for one	Internal	Unknown — not stated by the source
Antenna typeKnown for one	2x2	Unknown — not stated by the source
CertificationKnown for one	FCC/IC/NCC/Telec/NA/ACMA/MBIE/UKCA/MSIP/ANATEL/SRRC/More…	Unknown — not stated by the source
Poweridentical
Output voltageKnown for one	3.3 V	Unknown — not stated by the source
Operational conditionsidentical
Operating temperature (T-T)Known for one	-10 - 70 °C	Unknown — not stated by the source
Weight & dimensionsidentical
WidthKnown for one	22 mm	Unknown — not stated by the source
DepthKnown for one	30 mm	Unknown — not stated by the source
HeightKnown for one	2.5 mm	Unknown — not stated by the source
Packaging contentidentical
Mounting brackets includedKnown for one	Unknown — not stated by the source	Yes
Quick installation guideKnown for one	Unknown — not stated by the source	Yes

A dash means the value is not stated by the source. Unknown values are never counted for or against a product, and there is no overall score.

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