AUGUST 2019 PCWorld 89configurable within Windows, but there’s no
erasure capability. The only way to “erase”
e-ink is to slightly depress the top of the
barrel-mounted button. Otherwise, though,
the e-ink latency was minimal.
Dell’S WM527 is essentially a Microsoft
arc mouse, though with a thumbwheel and
without the ability to fold flat. A mouse that
balances fore and aft rather than with a solid
base sort of creeps me out, but it’s truly
ambidextrous, with a side-mounted button on
either side. You can connect either via
Bluetooth or with an included
wireless dongle. It runs on a pair of
AA batteries.
Dell’s WD19TB Thunderbolt
dock, meanwhile, demands a
sizable portion of your desk for the
expansion ports it offers. Weighing
1.29 pounds, the dock requires a
footprint of 8.1 x 3.5 inches. Though
the Latitude 7400 supplies a
number of ports, the WD19TB
provides many more: a pair of
DisplayPort connectors, an HDMI
connector, two USB-C 3.1 Gen 2
ports, 1 more generic USB-C port,
and a Thunderbolt 3 (USB-C)
connector, too. Unfortunately, you’ll
need to figure out which is which, as
they’re marked with somewhat
cryptic glyphs (an “SS10,” a
DisplayPort “D” and a lightning bolt)
that don’t quite make clear whatDell’s WM527 mouse is a recommended accessory for the
Dell Latitude 7400 2-in-1.
Dell’s WD19TB dock is definitely one to leave on your desk,
and not in your bag.
Dell’s PN579X active pen registers 4,096
levels of pressure sensitivity, with a 240Hz
report rate. Though the Latitude 7400 2-in-1
doesn’t include a dedicated holster to stash
the pen, both sides of the 7400 are
magnetized to grip the pen when not in use.
There’s also a lanyard in the box, as well as a
SIM removal tool.
While the PN579X does offer tilt support,
it wasn’t functional on the Latitude 7400. It’s
an odd pen, too: The top-mounted shortcut
button serves as an app launcher,